Do you honestly think that the "Early Access version that feels complete, fun to play, and has as little stub (unfinished) content as possible"?
I've seen full releases that were worse than what the EA in its current state offers. And as I already said: the content is there. You just seem to interpret that content means "bugfree and all systems", instead of "Act 1 of three". They even mention Act 1 in your own quote from the steam page. Now tell me: what is Act 1 severely missing? A few minor side quests here and there, yes. But the brunt of it seems to be there.
