Update: it seems there is now a patron-only link for the prologue on the patreon site, meaning it'll likely be out for the public sometime soon.
Shame about the lack of communication with the outside world, really.
Agreed. I find it kinda count-intuitive that the only way to learn the progress of a game through a paid subscription. Don't get me wrong I supported him and his talent once before but it would be nice to know some sort of progress outside of Patreon.