Tired of hostility towards anything that isn't current-gen

Things like 32bit and endianess aren't really the "take maintainership" kind of features though. You have to consider them throughout the whole code base, so it is hard to push maintainership of those features onto the community of people who care (quite independently of the question if that community even has enough volunteers to do the work if you could separate it out).

Also, both of 32bit and big endian have been on a long decline, so this is hardly the first sign that they would eventually be removed.