I have a lore related question pertaining to Cataclysm so I'm guessing this is the correct forum to ask it in.
I've been leveling a Worgen on beta and have been sticking to the Night Elf leveling zones because that seems the most fitting for a Worgen since they owe a great deal to the Elves for saving them.
The route I chose so far has been Gilneas -> Darkshore -> Ashenvale -> Stonetalon Mts. -> Desolace -> Feralas -> Thousand Needles.
All of the quests between the zones flowed so nicely and the breadcrumb quest givers seemed to give notice of your achievements in the past zones. It felt like everything was going along smoothly until I hit some kind of snag in Feralas. Basically, the Grimtotem Tauren were assaulting one of the Night Elf encampments that was positioned on the very eastern border of Feralas, right along the coast of Thousand Needles. (Because Thousand Needles is now flooded in Cata.) I've made it my goal to read every last bit of quest so that I can fill up on all of the lore now and level at a slow pace, then power to 85 when it goes live. Nowhere in the quest texts did it tell us why the Grimtotem were attacking. The night elves didn't even recognize their betrayal. They just put me on a boat and sent me off to Thousand Needles.
So my question are for those who have played through this questline. Do you guys know why the Grimtotem were attacking if we had just allied with them in Stonetalon Mountains? Everything up to this point in the game has been progressing in chronological order, especially with all the phasing.