There's a point that's being missed for 72 man. Any sort of premade, whether it's with 8, 4, or even 2 people, can determine how matches goes. However, a premade is only as powerful as the support it gets. Premades can be beaten by numbers or by sandwiches.

Sure, you can have a premade have the highest performance for a game, but they can simply place last at the end of the game due to the lack of support they may receive. Premades can carry. They just can't do all the work.

I'm just putting that out there. It's not changing my thoughts with bringing back 8 man groups.