EDIT: Seems to happen sometimes but not others, but I have had a non-leader Webbed and still lost movement. Maybe it's to do with whether the Webbed has finished before combat ends, though this is just a wild guess.
I'm pretty sure this is a bug - after the combat is over I'm pretty sure they would be able to get those webs off real quick. Is it intended that if the leader unit is affected by Webbed at least once during the whole battle, the whole army's strategic movement gets set to 0?
