Aurvandil can easily keep Madina from attacking anything else than their fortified city, where they get a significant defensive bonus. A Barcan/Moot vs. Aurvandil war would not be the same at all, as all parties will have regions vulnerable to eachother.
And this, overall, is bad for food production.
Someone should poke them to go to war then.
"I hear your other source of food has been burned to the ground. Well, moving caravans through there is certainly dangerous, perhaps I can sell you food for 75 gold per load?"
