So, Vitalik either rolls back the chain or he doesn't.

1) He does and eth proves it's centralized as this would be the second rollback in 10 years at the hands of a very few individuals.

2) He doesn't roll it back and eth proves it's centralized because a few individuals "decided", for every stake holder, not to.

I sold all my eth directly into bitcoin in the summer of 2016 and today is the first day I looked back . . . but only to laugh my ass off.