Not totally sure I understand the first part, but yeah most definitely they've said before that the kitsune content is it's own "island". Basically can't be meaningfully altered by others and it doesn't meaningfully interfere with other content. Easiest way to describe it is it's like a stand alone expansion pack, and several other areas are similar to a point. It leads to characters feeling more like ghosts, or hollow, or worst case like they only exist when the player sees them.
Each area that follows that design takes away from it being a world, just a fox box, orc land, etc. Imo it's a very very bad choice. They've been adding little connections and characters interacting outside of their zones so maybe eventually it'll be more interwoven. That combined with characters being finished so early feels very bad though, unless you specifically want to see a erotic scene again, eventually characters run out of anything at all and have remained so for a very long time. They don't write for a story, they write for current desires, ie "meh don't like them any more. I wanna write big donger muscle girl now. I don't really like those other characters either, instead I'm just going to take stuff from them and frankenstein it on this new character I like."
On moral and fetish talk, can't quote since there's so many posts about it now, but it's really a non factor. There's already weird icky niche stuff in game. The running joke of wanting to crusade everything has a foundation. Cait alone, you can be a living bed, tons of cuck content, and one of her marriages is foreshadowed to be the PC watching her get brazzered while they sit in a corner/get brazzered themself, and depending on your moral standards the list stretches out to about 90% of the game. On a moral richter scale it's similar to Bible Black, or a futa h that's a bit more edgy. You've got jizz food play, cucking, assault, blackmail, gagging, mind breaking, body modification, letting characters get assaulted, domestic violence, assaulting characters with low or animal level intelligence like wyverns, neglect play, direct mental abuse, slaves being choked and drug behind horses, etc. Something like a loving romance between relatives or cousins that support each other should not be the line in the sand, we marching up the beach already