Given that if this particular CEO were to, like, physically die (or even just throw in the towel) _Tesla_ would immediately die, I challenge this view of the situation. Even in its current, more stable state, this is a good signal that things are going well - this is not something most people can fake, certainly not people "on the spectrum" like Elon.
I don’t think anyone who really understands Amazon would have ever claimed that they have a bus factor of 1. In fact, I don’t think much would have changed if Bezos retired a decade ago. There’s a reason there are two other Amazon CEOs.
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.
