It took four years to change the titles of  cities and you dont think it would be disruptive to change tens of thousands And worse yet to argue about primary meaning and necessary disambiguation on thousands of talk pages The good reason that is needed is a clear nonarguable guideline and that is what we have now To make every single city a judgment call  what an enormous waste of Wikipedia time Avoiding THAT situation is a good reason Consistency for the sake of consistency is not a good reason