None of the interviews are evidence that Dust Hill Zone is the desert level because they are incredibly tainted. If instead of asking "Did the desert zone have any other names?" you're going to ask someone "Hey, so Dust Hill Zone is totally the desert level????" ten thousand times, of course you're gonna get the answer you want. https://en.wikipedia.org/wiki/Leading_question There is so much actual contemporary evidence that Dust Hill is Mystic Cave... and all evidence to the contrary is hearsay 10-20 years after the fact, influenced by fan theories.