I don't know if you're referring to the prostitutes or Dream, who in the intro of that scene basically looks like a slut, which together with the rather sparsely light maledom, makes it basically feel like it's appropriate to rule out the three girls in the hallway with wich you can talk if you decide to ignore the two nasty girls.
Personally I think that all LIs should have a romantic (light) route, a dark route and be able to avoid sex scenes and have any kind of relationship with them beyond what is necessary for the story.
On the other hand, I don't think leaving the fetishes to the dark route is necessary: A lot of people like a soft maledom, one that doesn't demean LI and includes little or no violence, plus consent on both sides, and that would not be dark at all, if not rather romantic. And the same can be said for femdom, it doesn't necessarily have to be demeaning, with harsh spanking or anything like that. These would be examples of fetishes that don't have to become extreme or lead to anything dark. (In my case it doesn't make me like them, but I'm talking about more general tastes than my particular ones)
On the other hand, prostitutes are a bad addition to any harem game with romance, so I think it would be nice to let, whoever wants, be able to close that route completely at the beginning and never hear from it again (which means that in his game doesn't exist)