I never made an endorsement of gp, I just took your remarks at face value (but not out of context.) It’s all conjecture anyways, but if I were a user reading that page I wouldn’t have gotten the impression this was a fork of something I could get for free. We don’t really know anything. For all we know it could be written entirely from scratch; an X server from scratch is really not outside the realm of possibility (it would probably be pointless though.)