It's fun watching porn game enthusiasts run face first into Death of the Author in real time. The problem, for me at least, is that, as harem.king said, the there's a contradiction between what the authors have said and the text they wrote. CoC 2 spends a lot of time fleshing out the world and setting, to the point where it details a lot of stuff that would be perfectly find not getting many details (see, everything to do with the corruption) with a decent level of consistency. Not great (the consistency, that is), but not the worst I've seen.
The basis for said world building is "typical fantasy thing, but horny." So you have 'typical fantasy temple, but the priests whore." The problem is that it's attempting to place a layer of logic to something which fundamentally runs off of porn game logic, AKA: complete nonsense. If they didn't spend so much time detailing histories, cultures, and so on, all of which have some basis in real world logic, then they wouldn't invite us to apply real world logic to the setting in the first place. Hence why everyone has a problem with the temple: it's applying real world ideas (religions taking in orphans and the unwanted and raising them to be members of the clergy) to porn game ideas (religion of sex crazed cat girls who all want to fuck you.) Hence why people call it a groomer cult: it's the uncomfortable, but logical, result of when those two ideas combine. Do I think this was their intention? Fuck no. But it's literally their job to make sure this sort of thing doesn't happen. It's a failure of both the writing and the setting that "the catgirl sex cult grooms its followers" is a logical idea to have in a game about fucking catgirls.
Truthfully, a setting this horny would have fundamentally different cultural norms and structures. You wouldn't get 'typical fantasy town #246,' you'd get something completely different because the way people are wired (for being all horny all the time) would be different. What that would be... would be an exercise in world building that's beyond the scope of this comment. It's obvious this whole setting is just their DnD campaign world that they've transposed to this game. And them having this setting for their own private games is fine. But when it's a product people are paying for? And it's still this mess of porn game logic thrown into a typical fantasy setting without any thoughts as to how any of it would play out? That's when the willing suspension of disbelif stops and the criticism starts.