https://www.forbes.com/sites/hnewman.../#316fa71d517a
"You mentioned in Stormsong, the Horde coming in and assaulting a city, that was actually kind of a last minute plan. We had different plans for the content there that we actually implemented and we played through. We felt it wasn't quite what we wanted, and so we took that angle with that one."
LOL so the original plan is that the horde was not meant to be attacking the city in the first place. What is the alliance writing team doing? Throwing the other faction on the road because the original idea is not interesting. Now Rexxar being strange during the foothold quest is starting to make sense.