I would like the peasants feelings toward a realm have more weight. That might be a quick-fix for stifling wars from rogueing regions and oppressive TO. If the mechanic for regions casting off the shackles of hated (or rogue) rule and joining whatever other beloved realm they had then it would be more difficult to change (and keep changed) the established realm.
Only way I could see it being gamed would be with diplomats...and I thought that was part of the point of diplomats. I could imagine the unintended consequence is border regions may start switching willy-nilly when it would be implemented.
