I agree that it's a game for everyone, because it's a mainstream game that includes the types of content that are universally liked. Now, you can throw a bone, so to speak, to all of the non-mainstream genres by having trans/futa content, monster girls, etc., but it will never be enough for people who love that content and wish that the whole game was like that, and it turns off the people who aren't into it. Cisgender Eve exists because some people really dislike trans content, for instance, and Daisy and Aqua are hidden. Any new kinks or fetishes DC adds at this point are likely to turn off as many people as they turn on, so they have to be made optional and gated off, and it's a lot of extra work to add a single scene to check off one more genre, which will only leave the people who like that content disappointed that there isn't more of it.
With unlimited resources, go nuts and add everything. Until then, focus on creating routes for the MANY girls who don't have them before adding new niche content that not everyone wants.