VN vs manga: character arcs, meaning and themes of Umineko (full spoilers)

Episode 7 is all about not neglecting the heart of Sayo. Putting Clair to rest but respecting the catbox. I don't think the manga does this justice, the plain solutions to the murders seem like... not that respectful?

I don't mind the full red truth in the Tea Party but I like it better in the VN too.

About Episode 8 and Confession, things get more complicated. I see, on the VN, that Tohya has reached the "truth" by himself. Not the only the truth of the catbox but the truth inside Sayo's heart.

In the manga, it is implied that Tohya learns this truth not by himself, but by reading a message bottle written by Sayo. I don't think that makes much sense.

In general, the manga showing the reader, directly, most of the truth: About Sayo's murders of each episode, the full red truth about Prime, and Sayo's detailed confession; puts the reader in the same position as Tohya. Not reaching for the heart, but being told the truth.

I don't think how that can allign with Umineko as a story and I usually think it goes against most of the meaning, themes and message of it.

Can you guys tell me where I'm wrong about it?