The only appeal of the Rump ladies is that they are clear avatars of real people that many people (*ahem*) would possibly enjoy hate-fucking. Honestly, there's no other interest for me.
I'm not one of these "DC is milking his Patrons!" whiners, but it seems to me like he's sort of lost control of his development a bit. He's just adding more fuckables that don't really advance anything in any meaningful way. Then again, like all these ncest games, once you get Mom to give up the nookie, it's all gravy after that.