It's pretty common unfortunately. Debunking AI-generated nonsense takes an order of magnitude more effort, so you really have three choices:
1. Accept that you'll spend most of your days finding issues that will get you labelled an AI critic, which means you'll be last in line for promotions, regardless of your contributions.
2. Ignore your integrity: fight slop with more slop. It's mostly what managers in such places are doing anyway.
3. Leave.
The third option is risky because a lot of places are copying the AI mantras from everyone else. Large companies do tend to have less original thinking at the top, so expect more parroting from execs.