Okay, in the context of the conversation that was happening, I understand and agree with your point. However, in my opinion, the writing styles in the sequels are different enough that there was a clear story and theme the creators were trying to convey. I don't think having a bunch of H scenes on the side that logically couldn't have happened inherently means the creators care more about the sex than the story, but your point is taken in the context of the previous conversation.
My issue is that I liked the themes of self-forgiveness and redemption that the sequels were actually about, and it sounds like you are discrediting such themes of the sequels as well through over-generalization of the entire series as a porn with a story. Again, while I cannot deny the creators care a great deal about their porn, I do not think that destroys (though it certainly lowers) the value of the story they tried to convey, especially when a large portion of that porn is not even contained in the story. This is also why I brought up ChiruChiru, because as silly as it was as a comedy that isn't even related to the main series, it still kind of attempted to replicate the themes of Grisaia albeit in a very light-hearted and comedic fashion.