We're not arguing, we're just having a discussion where we have some different opinions. So far in the game, there have been options to avoid situations (do you kiss the guy at the party or not, etc.), maybe not many, but the game hasn't really got going yet, so there haven't been too many opportunities. And it's not a rule that games have to have the option to say "no" anyway, that's just your preference (and I agree with it in general, with the caveat of what I've said in my previous couple of posts, and what I'll say again below).
No one has told me there's no vanilla route, true. I'm just going with what I take from the game's summary ("the growing realization that being a good girl isn't nearly as fun as being a little bad" and "How far will she go to fit in?"), but mostly the choice at the end of the current update, where you can essentially choose "sharing" or "cheating". There isn't a third choice of "neither/vanilla" there.
Again, I just think that some games don't need to have a vanilla path. If this game gives you a choice of sharing or cheating as a major option, and no "vanilla" third option, then I would take it to be one of those games where a vanilla path isn't needed. If cheating/sharing are the major parts of the game, then there's no requirement to also have a vanilla route that would mean the dev has to create additional story and renders because it doesn't fit the main parts of the story he's actually telling. Plenty of games have that additional vanilla route, despite openly advertising themselves as NTR/NTS games, but there's no requirement for them to have it.
As far as that last point goes, this game currently lists in its genre/future tags within the OP: cheating, corruption, group sex, multiple penetration, and swinging. Although those are not all specifically linked to either sharing or cheating, I would suggest it's hard to have group sex or multiple penetration, for instance, without going into that territory. With cheating and swinging in there as well (no NTR tag, but the MC is the one who would be doing it, hence cheating and not NTR, from her perspective), I would say it's clear what overall genre this game fits in to, whether it's the only option or not, so people who don't want that can easily enough avoid it. It does mean, IMO, that that stuff probably isn't "logically skippable" here.