Not just that but something that comes to mind instantly for Saudi Arabia is there's absolutely zero alcohol as well. Not saying that's the reason but there's a lot of things to hammer out in a contract.
In addition, there's a huge gap in quality and exposure between HHN and pretty much other attraction.
Lastly, we don't know whats in the cards. Five Nights at Freddys isn't going anywhere - it being a house might just be on the back burner for now