1: Yeah, I do that on purpose out of principle toward my labor and how I value it, even if it means fewer people get to experience it.
You could consider OutGrow a half-endorsed demo, if you wish, since it was built off my game and permitted by me, even if it initially didn't have my explicit permission and feigned originality.
2: Sure, but the initial concept was meant to favor giant couples, not just giantesses. My earliest concept, after all, only focused on the player character (male) and partner character (female) having a dynamic cooperative-competitive growing relationship, before it evolved to include external meddling like in the form of Chad and Stacy, and such.