You guys are all overreacting...
I mean cmon, the game is still a demo and it's only v0.02 currently. So of course it's not a full-fletched game. It's a bummer that it hasn't got a menu/UI yet, nor a gallery or save function. But for me this version is just a teaser of what we can except scene-wise. I think the models and renders look absolutely stunning and the animations are also very well made.
If i had to guess, once the base-code for the dialogue-, save- and gallery-system is in place, new updates can be made much faster than as of now.
I haven't played their previous game, so i can't say for sure how frequent their updates are/will be, but i think judging the game at this state for the lack of things is too early.
As for me, I'm very excited how this game will turn out in a few months!