This is wrong, reservations or tribals lands are sometimes within the greater MSA of some cities or otherwise adjacent to populous areas, (Tulsa is the most prominent example, Kansas City, south Florida Miami area, Mobile AL, Charlotte NC to list a few). In the context of the dealership laws, these are significant exceptions.
Of the 10 states with outright bans on manufacturer sales, all but Texas and West Virginia have tribal lands that theoretically could be used as a helpful loophole to this protectionism. Maybe not always Tesla’s the first choice of location, but a 50 mi drive beats a 300 mile drive, and sufficient to break the teeth of these laws.
Please dont be dismissive of “flyover states.” The lack of dealerships and service centers certainly impairs the sales process, and then California’s extremely generous (and unnecessary?) EV incentive gives many people from other states an incentive jump through some hoops and papering to purchase and title their vehicle there.