Though this isn't going to affect just their chatbot, if it is public documentation it is going to (try to) change the behaviour of everyone else's. I wouldn't want legal advice from a chatbot myself (or any advice for that matter, but that is a different discussion!) but hobbling other people's seems to be bad form to me. I'm reading this as they want every chatbot to use their documentation as the reference point not any legislation, so hopefully where their policies aren't quite in line and people could get a better/faster/both resolution by more forceful means, people aren't told that.