Yep, this is pretty much it right on the head. PC gaming is a different beast from console, because PC allows the Early Access model to be used properly (and improperly in unfortunate circumstances). Many, many, many PC games nowadays use the early access model to allow people to buy their game early (at a lower price) and help them improve the game as it develops, so that they have more input and more feedback to make the game more satisfactory to the people playing it.