Yes, except no not really.. That is to say, that is the saddest copout I've ever heard. You couldn't toss a stone on here without hitting quite literally over a hundred incest themed games that (without much effort) found work arounds to the new rules. Just off the top of my head, the most common fix is letting you the player decide the relationship between player and characters IE; Roommate, Landlady, Mom, Sis, and so on. So, not trying to be rude, but we call a collective bullshit on that. This Dev likes to brag about his "art" and "vision" but the scene from Timestamps does a spot on job of pointing out and highlighting just how lazy this Dev really is. Side note, most if not all of the abandoned games you referred to did so at the onset without putting much effort or research into the aforementioned mods/edits. The ones who stuck it out created a kind of template for others to follow, and now there is really no reason to roll over on the issue.