If at any point you conquer a city, which pretty much every player will do, a war with Rogue State will start. There is no way to make peace with Rogue State. This results in pretty much every player having a permanent -2 penalty to morale from the war. Since all players have this penalty there is no benefit in terms of balancing or anything else. The only effect of the Rogue State morale penalty is that the practical total number of wars is limited by -1. Fighting a coalition with 5 members results in a total -12 to morale which makes conquering very very slow and resource production poor.
The morale penalty from the Rogue State war is pointless and should be removed.
The morale penalty from the Rogue State war is pointless and should be removed.