I was discussing this with a friend recently, but it was our consensus that Maggot Baits is one of the few eroge that could benefit from having all its h-scenes removed... To be blunt, the h-scenes are in the way (vanilla or evil h, it doesn't matter).
As for pacing, that's actually typical of Kurashiki when he doesn't have Takahama, Marimo, or one of his other Light people keeping him from doing what he wants. Sora no Baroque had a similar problem. The writing is good, the story is good, but the pacing is abominable.
Edit: I liked the game's story, but the H was gratuitous in several negative ways (understatement).