I guess our enjoyment of a particular game or story is often, at least partially, coloured by our expectations. Initially, at least. We see a particular tag for stuff we like, and expect a certain type of content presented in a way we're familiar with. When the Dev goes in a direction that is different from what we expect, we're sometimes disappointed and sometimes pleasantly surprised. In the first situation, nothing is easier than simply to stop playing.
With this game I was absolutely pleasantly surprised, I expected hot lesbian incest (and got it) and got an interesting story about a dysfunctional family and old wounds. While the sex is important, imo it is secondary to the overall story of what happened in the past and, perhaps finding a better future together (with or without incest)
Rec is giving us a game that is more about story than a quick fap, imo. And, for me, those are always the ones I like the most.