I don't think you're wrong.I know that comparing his comics or single-piece artworks to the games art is not fair since you need to draw a lot more to make the game feel like a game and not just an image gallery. however I really liked the way he draw these comics or single-piece artworks and thats what got me into following him and also following his game and im gonna be honest I don't like the way he draw some of his characters in the game I know it would take forever to draw the game like this but look at these arts he did. Maybe my expectations are too high.
I think the game's complexity lies in the animations, not so much the static images. In fact, I also ended up here after seeing some of the comics. It's true that the game's designs are a downgrade compared to the comic art, especially regarding breasts. It seems more like a fetish of the developer's than anything else. What's surprising is that he showed better sketches that he then changed to what we have now ):