I mean I agree but what you are saying is that where else are you gonna host it? If you host it yourself and then it turns out to be an issue and you go down then that's entirely on you and 99% of the internet still works.
But if Aws goes down, lets say 50% of the internet goes down.
So, in essence, nobody blames a particular team/person just as the parent comment said that nobody gets fired for picking IBM.
Although, I still think that the idea which is worrying is such massive centralization of servers that we have a single switch which can turn half the internet off. So I am a bit worried from the centralization side of thing's.