Ex Amazon here (AWS). Pretty much agree with your statement. Bezos "replicated" his management style extensively, the executive team in charge of that is called the "S team" (S = Senior), and I agree that Bezos retiring would not affect the company too much.

Not really, no. I hope you don't have a large position in AMZN. It can only have a PE ratio of 82 because investors believe in the myth of Jeff Bezos.