Hm, well I figured the point of watching another group play isn't to emulate, but to learn possible approaches to the gameplay. It's not to show the One True Way of playing it. Grains of salt, and such.
Plus, if the viewer sees something they don't like in one particular group's recorded game, they can simply stop watching. That's preferable to joining a group, finding oneself uncomfortable, and then finding a safe route to walk away. Does that make sense?