The more I read these comments, the more I feel I was right before in discussions on earlier chapters. Most of the people raging about this past arc were totally blind to the darker undertones and commentary of this series that was there since the start, with a kid with obviously anti-social and even suicidal apathy. And only saw it as some yozakura quartet-esque slice of life that had some maybe shonen elements.
They feel blindsided now because they were willfully blind. And the more chapters go by capping off this arc, the more the same commenters (I went out of the way to check usernames) went from vaguely criticizing the arc, to outright blatantly stating they are here for the SoL, not any other themes, and certainly not any that isn't all rainbows and sunshine. Granted, its published in WSS, but that mag has always had a history of not shying away from such things.
I get that not everyone wants to read such almost-non-fiction. But I do feel like people should recognize that and get off the boat in that case. You probably got the wrong series. There's loads of manga out there, and just because you like some of what a manga is, doesn't mean you may like all of it. And it's not really the manga's fault.
The whole problem people have with this arc isn't that they don't like it's theme and they were "willfully blind" to these suposed "darker undertones" for crying out loud this manga grew a following because it was so relatable and felt real inspite of having flying vampires and middle-schoolers, it's just that it just sucks now, it used to be well writen and engaging but i can barely see that anymore.
I don't have a problem with mahiru being suicidal or kiku being a mass murderer or anything else you'd call "dark", but if you want me to give a shit about these characters you have to earn it, the detective arc was so engaging and good beacause it played with everything the manga had in it's hand, developed the mysterious detective and connected her to nazuna, it showed how dangerous vampires can be, it had tension and stakes and i fucking gave a shit ffs, and sadly i can't say the same for this arc, i still don't feel like i've seen enough of mahiru and kiku, but aparently they're dead now and i was suposed to be devasted with their deaths, but i can't help but feel confused and left wondering what even was the point of all this struggle and what comes next and how does it affect our large cast of characters?
But aparently the manga isn't too concerned about answering that since we're about to jump into a date drama bit. The frustration doesn't come from the themes or the story itself, it comes from knowing what it could be and having an expectation and ending up with something mediocre.
Though i'll recognize that this may not be the right manga for the people ONLY expecting more SoL-shounen stuff, but i don't think that's the crux of the discussion.