tl;dr TLS is a lot more subtle than f95's usual stuff thanks to the element of in-character choice, but can we really blame people for thinking otherwise?
I think another thing that makes the harem element more powerful is that the women in Simon's harem are there by choice, and I'm not talking about some momentary infatuation either- they've made informed decisions to be there, with the probable exception of Megail, but even then I think she's had some independence in the decision by accepting it as the inevitable consequences of her actions.
To me, it's a lot more meaningful that all of the harem members actually have the choice of seeing people outside the harem, but all the non-succubi
choose not to, and in the case of the succubi, they only fuck other people because they're literal turbo sluts by nature- might as well ask a dog to stop thinking of you as a god, or ask for a cat to start.
Honestly, I think what's throwing people off is that they come into TLS expecting a typical porn game, and getting a little blindsided because both the plot and the *~plot~* elements are more complex than the stuff you usually find here. I'm not ragging on anyone who prefers that stuff, mind you; I like me some Miel, which is the fast food of porn games (I guess you could call them Happy Miels?
) and
Free Cities, and I'm certainly not going to blame anyone for hearing that 'women in TLS can have a sex life outside the harem' then thinking it's going to be an NTR fest because that's what you usually get with h-games like that.
And yeah, it's turbo frustrating since this game is the exception, as well as the whole 'Madonna-whore' binary inherent in the assumption (but that's a whooole other can of worms, and I'm not sure I can do the concept proper justice), but I think this picture sums it up best:
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