A common trope in making-the-band documentaries: the internal creative strife before the game-changing break-through.

But this does not mean that internal strife is predictive of a big breakthrough.

Just that it's necessary for a game-changing breakthrough.

The vast majority of failed bands also have creative strife, but then they never have the breakthrough, and they disband, and you never hear about them.

It's hard to have a genius thing without some kind of creative turmoil (the seeds of greatness come from having a perspective, and perspectives can clash).

But the vast majority of turmoil does not create a genius outcome.