I think he just worries about what films are turned into houses which honestly there are somewhat a great little of his material people would make as a houses except for the many known ones like IT or Salem's Lot, The Shining, Pet Sematary, but I don't understand his hostility towards haunted houses being made around his ips, you see many directors like Eli Roth, Carpenter, Hooper, Craven, and others that let Universal have way their ips and they turn out to be incredible houses in some forms, but I don't understand why King has such ways with people wanting his movies to be turned into mazes, and to see that of course Warner got to use IT and it was just very random.