I'm not surprised to see Ian in the lead, because as the protagonist (one of) he's going to be the "self-injection" character for a lot of people. I actually look more like Ian than any other character, so it helps me in that department too lol. Stan is both surprising and funny lol. Jeremy isn't surprising because he's the source of bbc for those looking for it.
I also wouldn't mind if Eva added gay content. In a game with this much narrative variety, why not? I want a sappy, romantic, monogamous relationship with Ian and Lena. I also want a romantic closed-relationship threesome with Ian, Lena, and Holly. I also want an open relationship with Ian and Lena where they're together but also fuck a bunch of different people. And I also want a juvenile male fantasy run where Ian fucks all the ladies, essentially has a harem, but Lena is his main girl and he's the only male that Lena fucks. With so many potential optional paths, why not some gay or bi content, or even a reverse-harem route for Lena?
So many literal different strokes for different folks! XD