Yeah exactly. You may like it, but most people won't. Unfortunately people don't play this kind of games for story. The plot is the building blocks, the prettier the merrier, but the sex is the foundation. Better sex better game. You may disagree but it is what it is.
The topic of why we play these games crop up now and then. I really don't think all people play them only because of the sex, most of us definitely get curious about them and start playing them because of that, but I also see people claiming they keep playing them because of engaging stories and characters. I certainly enjoy a well-made sex scene, animated or not, but a game that doesn't provide context, background, plot and so on that engage me, is a game I'm likely to stop playing. I'd rather play a good story focused game without sex scenes than one with good sex scenes but without the rest.
Still, from a purely economic perspective I'm sure
Joshy92 and others are correct. Sex sells, after all.