The problem is that the public policy as posted by SE is simply different than the private communication from SE. Those private rules were shared in places that have an expectation of confidentiality, so the moderators are not entirely free to just post those without violating that expectation.

The public policy by SE is misleading, it makes the rule appear a lot different than it actually is. I am a mod on a small SE site, so I have seen the internal communication and it does essentially prohibit moderating AI-generated posts except in some very narrow circumstances.