QA testing doesn't exist for FSD. And you're applying standards used to test apps to share dickpics to a software that's moving killing machines in shared environment with other people.
It's not acceptable to have it fail for limited number of users. As my kid who may get killed by the failure didn't sign up for it.
How would you feel if this was a standard for aircrafts? "Let's just push this change to a small portion of the fleet, and boy, if that plane crashes, it's soooo much better if all our planes would crash. High five, where's my bonus?!".