On this list Tonraq is the only person that gets the real netorare treatment but it doesn't feel as bad because there are reasons for Senna to do it and it's implied she's only doing it for sexual reasons not because she loves the mc.
Tenzin and Tonraq on the love route doesn't really fit the theme, I give you that. Pema is established as a Milf succubus in the slave route though which probably made it easier to oversee this problem in the love route which came after. Both Milfs are kind of fan service in the love route, nothing to sugarcoat there.
It's a pity Kuvira never really loved anybody but nevertheless I would enjoy seeing her geting fucked in all holes in front of Baatar Junior.
Point is, all NTR scenes in the game so far are kinda "soft", we don't fuck anybody in front of their loved ones. On slave route the mc is a spoiled horny kid that doesn't want to share but he's not evil and gruesome, at least most of the time. (And it feels strange, the few occasions it happens.)