For the 10th time, this is 1 way street. Many ntr game players have no problems with incest or romance elements in games (i dont like incest but many do, and I do like romance). Please stop making this out to be some dichotomy, it's not a "neither camp is happy", it's always and only the pure incest-harem camp isn't happy and will loudly tell others so. It's their way or the highway, no middleground, no compromise.
Regarding actual game, interesting to see a 1.5+ GB release, either there's an impressive amount of stuff here for an early release, or images are very poorly optimized.