This is a smart product in more than one way.
Firstly, for Pathfinder users, they are great to hand to your player in many cases because they don't automatically know where the Blacksmith is or where so-and-so lives. They need to find out and they can fill in the map as they like. So I see more usefulness in map with no labels at all rather than one with them.
Secondly this product can be sold to non-Pathfinder customers such as myself. I'm buying this to drop into my own gaming using another system. As such I'm completely unconcerned with them being labelled because I'm going to do that myself and if it was already done, they'd be less useful to me.
Good job and smart marketing. It's why Paizo has become successful in such a difficult industry.