This whole setup collapses when Bezos calls someone and says "you're fired if you don't do as I say", which he might if Trump leans heavily on him or threatens to take control.
The above quote implies that the threat from Bezos should have no effect. Then again, I have no experience in corporate politics. Are you saying that even with that quote the "AWS European Sovereign Cloud" setup is pointless in practice?
An advisory board is very different from a governing board.
At worst it sounds like a canary.
What about them? It can be as independent and legally obligated to focus on whatever set of interests you want, if its only an advisory board, then it has no real power. (And, unless there is some guarantee of information other than what the management of the main org feels like giving it to support its advisory function, it can't even serve as a reliable canary.)
Depends if PR is pointless.