On the one hand, I can understand why some people might be disappointed in TtP. If one's goal when looking up NTR is hard corruption and the like, TtP won't satisfy that craving. It's a very soft VN in a lot of ways. Unfortunately, that's utterly and absolutely inevitable. It's been produced via Patreon as the primary money making platform. As long as that remains the case, there's no way that Azienda will push things. Unless they make a push to get all of their fanbase to relocate to subscribestar, or try to set up a ci-en/Fanbox or something extra and completely abandon Patreon, they're super limited in what they can do.
Of course, if things keep going the way they are, Patreon's gonna nuke all adult content from their platform ANYway... I give it two more years at the most... But that's a whole other conversation.
On the other hand, calling TtP a disappointment in general as if it's objectively bad is quite frankly ridiculous. It might not be some amazing corruption and horror story, but that's like saying that the Lord of the Rings is bad because the Sauron didn't win. It's absurd. You can't classify something as good or bad for purely subjective reasons.
TtP may have its flaws, but as an overall VN, it's very well done and certainly much better than a lot of other works with the NTR label, VN or otherwise. Just look at all the slop from Atelier Sakura and the like if you really want to see mediocre, disappointing, and stuff where the art is usually its only redeeming feature.
Saying that TtP is worse than Misumi is absolutely hilarious and absurd. The Misumi VN was almost completely generic in terms of writing. It only had a single stand-out element to it, and said element was under-utilized and undermined by the fact that Misumi went from zero to turbo-slut waaaaaaaaaaaaaaay too fast with essentially very little build-up.