Maus is an incredible book. Banning such a deeply engaging depiction of the holocaust because it contains the word "damn" is pearl-clutching to the point of self-parody. It is difficult to imagine another book that could hold the attention of 8th-graders anywhere close to as tightly as this one. I've seen someone read it cover to cover in the middle of a party because someone said "You should check out this book."
Maybe the board really is ignorant of it content and only exist to quibble. If they are actually motivated to keep their kids ignorant, there is no way in hell they are going to say so in public! Either way, they are doing their kids a huge disservice.
And, regardless of intentions, this is a poster-child example of dubious book-banning. You might as well re-write '1984' because you think kids can't handle mean characters. Or, similarly: https://www.cnn.com/2022/01/26/media/china-fight-club-ending...