I like Bushranger's idea. Yes, the gates are, open... you can go inside, but if you see a twitchy guy, or someone missing teeth, oh no, you actually WENT inside... GET OUT! I'd love the idea of some kind of rebellion having taken place, and once the streets are basically clean, the gates open. You COULD go inside, but do you really want to listen to that one wide-eyed aide speak poetically of something that, for no explainable reason, makes your skin crawl? Probably not. Back to Morin's, fellows, this is some spooky stuff.
EDIT: Plus, there are some scenes that only make sense with Tuluk as a backdrop, a contrast to the Nakki elements. Whoever said Tuluk doesn't have enough lying going on, JEEZ, Tuluk is BUILT on lies. If you don't lie in Tuluk you're going to have a really bad time.