As a counterpoint, I don’t mind the hexbear and lemmygrad posts being hidden from view. These people have no interest in good faith arguments and instead derail every post into irrelevant arguments filled with half-truths or outright disinformation.
Server instances deciding independently whether or not to defederate gives people the option to either use an instance where they won’t see this garbage or one where they do. Sounds like a win-win to me.