Yeah, except its obvious from watching those videos, that those spaces are not complete, unfinished geometry, complete lack of ai in some cases. The point here is that it is far more likely that these areas where left unfinished and closed off when the game released because the dev team had not finished them yet. They even said in a recent interview that the content had just been completed. At the moment, its all a bunch of assumptions because people are eager to point fingers and scream when they don't understand the nature of game development.