Feedback from a group testing draft including some local pros: Dampening Pulse, Brood Monitor, and Roil Spout are insane, as are most of that gold cycle, 3 mana green fight card is meh, don't first pick ulamog, unless nothing else is pick worthy, evolving wilds should be higher pick in this format than usual, 19 and even 20 land decks are definitely viable.
Blue retreat is terrible, white retreat is great, black retreat is terrible unless playing the lifegain synergy deck, green and red retreat currently are very mixed opinion-wise.
So once we get past the fact that most of the information in the article is probably BS taken from Tumblr, we can get over the article and go back to the good old English definition of "loose" which, in this case, is subjective.
Actually, it's hard to tell. Since exactly zero of the given examples don't share a theme, as defined at the top of the page, it's hard to tell what a cycle that doesn't share a theme would even look like