One of the most prime examples, at one point a number of terms related to homosexuality had made it onto the list at the request of a larger district. These are also terms that are being reclaimed, and it was... a difficult problem to try to satisfy everyone, and it did upset other districts. I believe their patterns were all but removed eventually.
We have a fought over the list of definitions and every change provoked controversy. Our current solution is just that we mark items for teacher review but don't tell them why. We don't say they are offensive, we don't say what the problematic words are. We just say it might need review. That's worked pretty well so far.
All this is to say, policing speech is a problem best avoided.