Though your answer may have been before this was revealed, but when Madara was revived, he lost his Rinnegan and went blind. I recall someone also said Edo Tensei Rinnegan were fake Rinnegan which could not summon the Gedo Mazo. Also, its likely that, like all other damage done to Edo Tensei bodies, the eyes would crumble to paper like scraps and then try to remerge with the body, or remain useless and new eyes would form.

Madara lost his eyes when he was revived with the Rinne Tensei, he had his Rinnegan when he was revived by Edo Tensei. Those are two different jutsus. The Edo Tensei Rinnegan could not be used to cast the Rinne Tensei, that is why Madara needed to use the real Rinnegan (which was with Tobi at the time).

That said though, Kishimito-sama seemed to have hurried through the final battle at times, and was not always consistent. For instance, Madara somehow summoned Susannoo without eyes at one point even though it was explicitly stated earlier that it required Mangekyou Sharingan in both eyes.

It was originally stated by itachi that when you master the Amaterasu and Tsukuyomi, you get Susanoo, but Sasuke, Madara, and Kakashi do not have both of those techniques, but got Susanoo. It was kind of changed to be more related to mastery of the technique each eye gives you, but then, that implies that only mastery is required, and having the eye or not becomes irrelevant after that. It is strange though.

the Susanoo Wiki entry "The third databook states that the user must first unlock Tsukuyomi and Amaterasu before they can gain Susanoo,[1] though this was only the case for Itachi. In the fourth databook, acquiring this technique is done through the user manifesting both Mangekyō Sharingan." Seems to support that idea. Manifesting both Mangekyou is how you acquire the technique, but not a requirement for using it afterwards.

Actually, you need to activate Mangekyou in both the eyes to be able to use Susanoo, those techniques need not be Amaterasu and Tsukuyomi. Itachi's Mangekyou gave him those abilities, so he may have been referring only to himself. That was also why Kakashi could use Susanoo after Obito "gifted" him both the Sharingans (which is another strange development by itself). In Obito/Kakashi's case, the Mangekyou powers happened to be the long-range Kamui and short-range Kamui. Sasuke did activate Amaterasu and Tsukuyomi as his Mangekyou powers, and we don't know what Madara's Mangekyou powers were.

"Manifesting both Mangekyou is how you acquire the technique, but not a requirement for using it afterwards." I am not convinced by that explanation. I cannot argue with its authenticity if it is in the databook, but it totally sounds like a retcon. In other words, Kishimoto realized that he had created an inconsistency so retrospectively added that point to the databook to force consistency (assuming that line is in the databook).

Think about it, if Mangekyou powers could be used without the eyes just because you have activated it once, it pretty much makes it pointless to steal your brother's eyes for the Eternal Mangekyou Sharingan, rendering a lot of the plot unnecessary.

Ya, that was kind of the idea I was bringing up

It also puts a new spin on the whole Izanagi/Izanami techniques. Those techniques make you permanently lose the light of that eye which casts the technique, but hey, once that happens, just pluck out your eye and you have your Susanoo back, which is very very lame. Then we need to make more rule patches to prevent that, which just makes it a lot more ugly.

Well, if that was the case, even if you kept the blind eye, you would still have susanoo

theoreitically, you never loose a Mangekyou ability just because the eye is blind

just that its kind of hard to aim

Exactly, in other words, the whole "sacrifice an eye for Izanagi" becomes a joke.

well, its still blind

I think in some cases, the best option is to accept that the author made a mistake and move on. The author is human, after all. It keeps things lot simpler and helps you enjoy the story without worrying too much. :)

In the end, both Naruto and Bleach seemed rushed at the end, probably because of ratings. I pray this does not become a trend, but i guess if it does, more traffic for anime.stackexchange

Yeah, I stopped contributing to Anime.SE a few years ago, perhaps I should visit once in a while.

I did enjoy the philosophical backdrops in Naruto even if the fights were not upto the mark.

It helps that Im not here for just one or two series, but many

For example, I have seen a lot of people (in real life) shake their heads at Sasuke's Hokage plan at the end, until I explained to them how it applied to real world politics.

Lots of people cant put themselves in the shoes of the characters

especially if the character is not completely identical to a regular human in terms of personality

One of the reasons I went on hiatus from here was so that I could enjoy reading or watching more series. WhenI was contributing here, I found that I was either focussing on a few series or getting bogged down in the details.

The thing with Naruto is, every character wants to achieve peace, and they have their own ways of doing it, all of which can be mapped directly to real world politics.

the only truly "bad guy" was Kaguya in the end it seems, but even there, stuff is missing

Let's look at Pain. He says we will make a fearsome weapon which will force people to stop fighting, over time people will forget about it, then we will use it again. Now compare that to the atom bombs dropped at the end of WW2, fits perfectly.

Madara wanted world happiness, and if the Eye of the Moon plan was actually like he thought, it wouldn't have actually been all that bad.

Yeah, apart from Kaguya, it is hard to think of any character as a proper villain. I am sure, if Kishimoto had the time, he would have given her a backstory that would convince us why she was not so bad after all.

Momoshiki

i believe that was her motivation

Yeah, the whole philosophy of "there is always shadow where there is light" is seen over and over again in real world.

The story implied Kaguya was on the run from him or something,

Yeah. Naruto gets a lot of criticism for making villains turn out good eventually, but I think that makes it realistic. Nobody is born a bad guy out of his mother's womb, and every person has some good and some bad traits. There is no 100% bad guy out there.

All the big bads in the end wanted good things for the world, but were considered bad for their methods or the final plan

until Kaguya at least, but Like I said, Details got hazy regarding her motivation

I was actually rooting for the Moon's Eye Plan, although although knew that it was going to fail because the series name is Naruto, not Madara.

Well, I kind of thought all that as well. The plan was kind of doomed to succeed no matter what, just in different ways.

If he succeeded, We get peace and happiness, if he failed, we have the alliance, and still get peace and happiness

But I would have preferred Naruto and team defeating Madara to stop it. Even the silliest "talk no jutsu" would have been okay with me, instead of the whole "Kaguya took over Madara" and "Black Zetsu was pulling the strings all along" thing.

of course, when it was revealed that the tree would eventually basically kill you and turn your body into White Zetsu, that kind of changed things

It gives me the shivers relooking that scene where Obito shows his "White Zetsus" to Kabuto, neatly stacked up. Those were real people from Kaguya's previous use of the technique!

To his credit, Kishimoto has thought ahead a lot of times. For example, Obito can no longer poop after receiving the White Zetsu cell replacement. Why? Because White Zetsu is essentially a tree!

Honestly, I think if Kaguya was not involved after her sealing at all, and we did get talk no jutsu on Madara, there would have been too few questions left for other stories to answer. For a major series like Naruto, thats practically forbidden by the money hungry people involved.

There is some unwritten rule in story telling, called the Conservation of Detail, which states don't mention anything which will not be used. So with SO6P and his mother getting a mention early on, it was required to throw them in somehow. That's how the whole SO6P transmigration and Kaguya being sealed in the Moon came about.

It wouldn't be completely satisfying to mention such supposedly important characters and then end the story without mentioning them again. That would also lead to a lot of fan speculations.

But ofcourse we did not need to get them as active characters in the present

A flashback arc like what the Anime did could have solved many of the issues, and been the trigger for Madara realizing the plan was a bad idea

Though, having SoSP show up to tell that story would have probably still happened in that case

Its all about Hindsight though, We can say what should have happened, only because we found out what actually happened. It would be oh so much harder to actually come up with it from scratch

and only Kishi knows the original plan he had for Kaguya, which could have been so much better in his head, before he was probably forced to change it to maintain story consistency because things rarely go exactly as planned.

I hope that one day Kubo does some kind of "what should have happened" story that is what he actually wanted to happen to end Bleach, instead of the Ex Machina ending we got cux he was so rushed.