I cant speak for everyone regarding the Us house, but how i see it is the main antagonists of the film just aren't scary to me personally. They're basically just regular people in a red jump suit, what makes them scary in the context of the movie is that they're basically evil versions of our protagonists who are out to get them. Remove that context in a maze and, yeah they're just random people in a red jumpsuit with a pair of scissors. I think most people can see it being turned to a maze, the environments are there, but i'm not head over heels for it to be coming to HHN. It definitely has potential, but i think a lot of people would rather see another property in its place.