I think you are being too specific in what you are saying is an issue. If you rent out your house on AirBnB, you are not expecting commercial business to be done in your home. Would you be upset if someone rented your home on AirBnB and then ran a small sweatshop out of it? What if they used it as a temporary slaughter house for animals? The base fact is they used a private property for commercial purposes when they were not legally allowed to do so. To me the general issue is private use vs commercial use.