You know how annoying it is to play on the same maps over and over again? ;)
I've been playing for 6 years on just 3 maps. And you can hardly expect any sensible multiplayer matches. And the map generator in Heroes of Might and Magic III isn't that bad. You just don't know how to use it. :D
By the way, it seems that the release will be without an editor and without a generator. It will be a bare version, practically. ;) (I'm not responsible for the accuracy of this information).