author of the game here -- i hope you don't mind if i reply to your comment, as i was notified about it. :P
i personally don't have super strong feelings about human/feral content. i don't think you mentioned human/anthro pairings in your comment but as an example, i don't really see much of a distinction between human/feral and human/anthro pairings. it's all kind of the same -- sapient animals are sapient animals. (of course, some feral content is about non-sapient animals, but i do not think i would ever make a game along those lines).
i will say a lot of feral content is deeply unappealing/gross to me, but you know, that's life. i don't think it's doing any concrete harm and so i just don't have strong opinions on it (besides, maybe, "ew, i don't want to see that."). perhaps the deeper distaste i have for a lot of different kinds of pornography is the sheer amount of misogyny (and sometimes other kinds of bigotry) present in it.
this is the primary reason i avoid human/feral pairups in my own games: i think they often play into misogynistic ideas of domination and similar. for example, a human man on mare could be read as a human male exerting power over a powerless animal. similarly, a stallion on human woman could be read as a tiny female dominated by a huge penis, or what have you.
i don't really like these tropes and ideas and, although i have definitely consumed lots of misogynistic porn in my lifetime, i strive to do better with these longer term video game projects of mine. i don't think it is necessarily impossible to make thoughtful art about human/feral pairings, but it would have to be done carefully.
that said, i have found video games are a pretty decent medium for the expression of consent. specifically, video games are an art form that can actually refuse to respond to a player's command. a drawing can't refuse your gaze, but a video game character can refuse your (in-game) attempts to have sex or whatever. i think that a human/feral pairing could therefore be done thoughtfully by a video game. ymmv. it is fair enough to be entirely disgusted by the concept!