You'd think so, but I really don't think that the stuff with the CPPs is supposed to be considered one of the dystopic aspects of the setting. The Jayden/Meow thing is clearly intended to be wholesome and a bit comical, to contrast everything else going to shit.
And with Umineko, he clearly wants us to care about Yasu and its relationships with three of its cousin/nephew/nieces, trying to paint them as sympathetic and sweet despite all of it being fucked up beyond belief, so it's pretty obvious that Ryukishi is a massive degenerate.
And while he's not directly responsible for some of the stuff in Mei, he's obviously not bothered by it, and signs off on everything:
DEEN is bizarre in how it almost seems like they deliberately cut out/altered some of the most important aspects of the individual arcs.
Onikakushi was a solid adaptation, and is about as good as it could be, though it still loses a couple things in the transition, such as the opening working better without visuals, but the following arcs all miss the mark pretty badly.
Watanagashi stealing a scene from Meakashi to use as its opening just for shock failure doomed it from the start, with how much it screws the time loop plotline, which is then further cemented by the changes to the doll scene. It was key to the story that Mion was the obvious recipient for Keiichi's doll, and it's only because of both of their insecurities that it ended up going to Rena instead, leaving Mion as the only one with nothing. You can't have the scene with just one doll because that makes Rena, who loves cute shit, the obvious recipient, and Mion just looks like a dumb whiner.
It also fucks with some of the Shmion placements, since it was supposed to be Mion as Shion who saves Keiichi from the thugs, but since DEEN combined several scenes, it ended up being just Shion instead, making Mion, who already got screwed enough in the original VN, even more useless. Meakashi then follows up on fucking Shmion forever by removing the entire twin switch, even though it's probably the most important part of their backstories.
Tatarigoroshi is just painful in how much it cuts out. The trap lectures from the TIPS were pretty crucial in showing how, in spite of appearances, Satoko is in fact highly calculating and has a strong grasp on other people's psychology, which is pretty important when trying to understand that Satoko isn't merely intimidated by Teppei into pretending nothing is wrong, but has a strong motivation of her own to tolerate it. The pacing is also completely fucked, since Tatarigoroshi is supposed to be slow, as thing gradually break down. Cutting out all the scenes where the whole situation starts to drive a wedge between the club members is also a huge miss in the long term, since the overall story is supposed to be about trusting your friends and coming together to solve an otherwise impossible situation. And that's not even talking about what they did to the GHD. Like, holy shit, how are you supposed to even try to solve the overall mystery without the knowledge of Takano's genocide and its artificial nature?