Son, the fact is that the way a roll is done has specific reasons, ones that you don't know or understand. Yes, the instructor needs to be the authority that is looked to. No, not all rolls are equal in terms of being applicable. No, the rolls you've given (most especially the gymnastic ones) are not applicable.
You have a tendency to think that your context is the only "real" one... which leads to you offering opinions where you have no idea what you're talking about. We could look to your posts in the "Looking for an Iaito" thread... or your posts in the "Aikido Hate" thread at the moment... where it's clear you don't have the first clue what Aiki actually is, nor, indeed, how to even spell it... even when everyone else is spelling it correctly. And, frankly, the incredible lack of awareness and familiarity shown by not having a clue about the words themselves, let alone what they mean, shows that nothing you have to say in these areas should be taken as having any credibility whatsoever.