One of the most surprising things in my brief experience at Amazon was how much of a shitshow it was. The two-pizza rule and self-sustainability for each team led to huge overlaps, with teams doing the same thing.
With such a huge organization, you had to go through 15 different stakeholders to get a single thing done, and there was an ingrained middle management whose only function was to connect you to the right person.
Just figuring out who was responsible for what and how to get things done was a challenge in itself.
Despite all this, Amazon still succeeds, and their process of PR/FAQ, leadership principles, and one-pagers is one of the best I've ever seen.
But I wonder if at some point, like with any philosophy and just like Bezos predicted, it will become too much and the whole thing will cave in on itself.