Conspiracy theory... I think that instead of swinging with the other couple (which was practically implicit in the previous update), the developer decided to go back and do two separate routes, MC with other girls, and the daughter with other men.
Seriously, why are people worried about the NTR theme in this game? The story is practically non-existent, you can skip all the dialogue and it won't make any difference. What's more about seeing a girl have sex with other people? Treat it like a comic book, don't project yourself into the character, that way we can see good scenes with the girls, no matter who it is. If a story is well constructed, with depth, even though I like NTR and sharing, I know that not all games this fits, and it can often lead some games to ruin. But I don't see that in this game, for me, if the girl has sex with other men (with or without the MC present), I wouldn't mind, since it's a game just to look at the renders. So, the more sex scenes the better, regardless of who it is with.
To the people at facepalm, it's just an opinion like any other, and as valid as yours.
Edit: Yeah, there's no point in saying it's just a comment, an opinion, some can't hold back and show their total intolerance, seriously, I feel sorry for your small minds.