They didn't really have a chance at taking over Paisly even though everyone was worrying. The region was on the brink of starvation when Aurvandil arrived and if they stayed we could just let Paisly starve to weaken Aurvandil's army. And to those who say Aurvandil would have still been able to take Paisly before the moot could fight them, they are completely wrong considering it would have taken Aurvandil quite a while to take the region since they were only at 10%.
