I would vehemently disagree. I would say it has been a testable alpha for several years. This is still not really a game you can play, more of a series of functional prototypes or demos of specific content.

What is out today would have been really promising in August of 2013.

Ok, so define "play" because I've "played" this game a lot, by my definition.

I make no claim that it's done, mind you. Only that it is playable, and that it is a game.