You don't know that, steam reviews are not a measuring sistem, only the developer knows, I don't know if it was good or bad, but if it were that bad the reviews would be extremely negative I reiterate, I don't defend the DLC either, I think it's something normal and simple porn for a porn game, if you like it, you buy it and if you don't skip it, it doesn't make any difference whether you have it or not.
Like the one with pubic hair and huge tits, there are people who don't like pubic hair or unnecessarily huge tits, so buy it or skip it.
The hardest way to hurt a developer is to not buy their shit because your complaints aren't going to go anywhere.