I also believe that the excess spawning of rogues was also set into place to encourage this same density and interaction.
From what I have seen, the excess spawning of monsters has had the opposite effect. It has broken apart realms into smaller areas leaving little chance for interaction between realms. One can not leave their realm undefended so that they can travel through many rogue occupied regions with their entire army to either assist their allies or to wage war on their enemies. The goals of the devs may be laudable, but the path they follow to obtain those goals is, in my opinion, questionable.
