Yeah same with me... I have cut ties with steam and am definetly not gonna buy it on there. Its a shame, because I would really like to try out the game and support the creator, but like this I wont be able to do either of those things...
The game sold a million freaking copies. I get it "piracy" and everything, but these guys sold more copies of one game than most devs sell in their entire lifetimes. I don't want to have to buy this thing on Steam. You made your money, now give the folks at itch something other than a taste of it. They can either release the full game or delete this page.