I agree with all you have said.It’s perhaps a minor point, but to me the harems in NLT games lean much less into the “owning women” trope of the fantasy, and much more into the “I’m just that amazing” aspect, where the MC is just so great (in bed) that not only are the women perfectly fine sharing him, but they don’t even look at other men anymore.
The problem with having LIs from previous games reappear in later ones again as LIs is twofold. First, you would have to include some justification for their not being with the previous game’s MC anymore, which could retroactively detract from that game’s fantasy, and might not go over super well (everyone always hates when movie characters break up offscreen between sequels, or series characters between episodes). Second, it would start to look a lot like NTR, with the newer MC coming along and stealing the previous one’s girls, after players spent all of the previous game building affinity with the older MC.
Hell, I was surprised to see NLT sort of toeing the line by having Alia in a threesome with Hannah and William. I’m personally all for that kind of thing, but I’m sure there are some people who would see that as “cheating”—I think it’s no mistake William and Alia don’t even touch each other in that scene.
But just to echo that when you mix harems in a scene it makes no sense. The allure of a particular MC might be that they are so amazing, but the games also keep referencing the sex virus suggesting that the girls/women have little control over their desires.
In the case of Alia, she was in the forest, with cock available but she stayed true to the harem, but not true enough not to mess with girl from a different harem. Plus, with Henry dead, she wouldn’t have been getting any unless she has been visiting him in hell.
I get what NLT are trying to do, but in my opinion, if they are going to stick to the harem honour code, it is best not to have mixed harem scenes because they look odd and illogical.