Anime is pretty much the only place today where you can make high-budget, high-production art where sex is a major focus, without becoming outright pornography. There's a lot you could do with that. There should be more erotic thrillers, or gritty dramas about the psychology of sex, or trippy surreal erotica, and really just anything more interesting than mid action with jiggly boobs or comedies that mostly come down to "oh noes I accidentally groped her boob!" I'm not saying there isn't anything that stands out, every few years something does, the Fujiko Mine anime is a recent example of something that felt pretty fresh, but for all the money and attention that gets poured into this genre, it feels like the ambition is almost null.
It's a boring genre for teenagers