>>886374
I'd be a bit more inclined to think of your idea of him simply giving up and shifting the genre if he hadn't already done something similar with Higurashi. In Higurashi, it is initially set up as a horror-mystery type theme, but as the plot goes on it ends up being about the characters and the relationships between them, especially the value of friendship. Umineko does the same thing, first presenting the setting as the most classic murder-mystery type story, then unravelling it as being a character-driven story.
If you're looking to define Umineko as a something other than a character-driven story, then the real definition would be that it is a metafictional analysis of the mystery genre and its readers, along with comentary about the fans and their expectations. The whole damn series is an analogy about that. Mistaking it for a detective story is a mistake on your part, and not being able to look deeper than the objective details shows that you didn't pay enough attention, which is constantly warned about throughout the series in the phrase "without love, it cannot be seen".
Aside from the fact that your analysis is incorrect, I'll add that the role of the detective, played by Battler in the first 4 EP's, never once sees Shannon and Kanon at the same time. The only time people see them in the same room together is if: a)They are aware that Yasuda is both Shannon and Kanon and accept that, which is limited to the staff of the mansion, and b)If the scene is a fantasy/magical sequence, which doesn't corporeally happen. Go back and read the sound novel again and you'll find that these rules are absolute