It's a bit funny to see them ask for, almost beg, for people to wishlist the game now.
I might very well pick up the game later, on Steam or GOG, but I'm not really in the mood of helping them with their marketing through wishlisting.
The game looks good though. I liked Bastion, but wasn't a fan of Transistor, and skipped Pyre. This looks much more as a game for me though, and you know that the look and feel of the game will be excellent.
And whatever they said about releasing the game on other stores only after Early Access, it doesn't really matter. Anything else but releasing it on other Stores when they can, would have been a strange decision. I just assume that they thought of EA being a shorter period for this game. I see nothing strange about that.