I just joined AWS ProServ and I really don't see any of these things. Pretty amazing team and one of the best work life balance I've seen in a tech company so far. I have 4 other friends who work at AWS and all seem very happy so far.
I found the glass door comment and it seems to be from an engineering manager. I have a friend who manages one of the AWS products and he seems to be pretty happy.
I just joined so I really am not a statistically significant case but so far it's no where near what was in that NYT article.
Edit: I can't read apparently :) thanks heuving for clarifying and the commenter for reformatting