If they cant make a toggle, then why not take advantage of lot traits/ challenges? We already have some vampire related lot traits and the haunted house lot, so why stop there? Make a lot challenge for increased vampire/werewolf attacks? A lot trait that spawns mostly spellcasters and magical shenanigans? Or maybe a lot trait that doesnt allow for any occult to show up? It may not fully do away with occults in the game, if someone doesnt want them, but at least it gives that player a bit more control over who they want showing up at their front door and doesnt disregard the player that does want occults in the game.
