Well, I partly disagree. Precisely the fun of TWW is the fact that you can do whatever you want in a world that has been set up for you to play with it. (Maybe it could be more user friendly, true.) But if you do it like in crpg, you would not be able to rotate the scene props, and placing it wherever you want would be confusing as hell.
But I agree on the fact that this needs some kind of pre-built town or city. Just a basic example so that players can follow it and build their cities. Why not make a kind of background buildings with an empty centre, acting as townhall, where players can set up their own stuff, that would be a nice improvement.