Correct me if i am wrong, but none of the "love" interests are actually related to the MC, right? The MC is an adopted son iirc.
That's the case with every incest game on this site, though. The characters a definitely family coded, though, and are obviously for people who want that kinda thing. The game likes to lean into tropes like harem, incest and ntr but never really commits either way. Which, is fine, I guess, but feels a bit cheeky.
I'm fine with them stepping away from incest, though, because it comes with to many risks to include it if you want to sell your product.
I'm not particularly interested in NTR, but as long as the romance path gets fully fleshed out first, I see no issue adding in an NTR path later. As long as it remains optional, it's not a betrayal of anything.
Harem, though, I feel was actively advertised early on. That could just be the guy who made this thread fucking up by jumping the gun, but this game has been in development for a while, so it's weird that it wasn't clarified sooner.