I'm not talking from a lore standpoint. Alliance players can already team up and go kill Garrosh. So doesn't that mean he's dead already? Lots of broken mechanics here, players shouldn't be able to attack him or any other major figure that isn't supposed to die in lore yet.
Or maybe I'm missing a key piece of information that one of you will enlighten me with. I'm hoping I'm just ignorant and this all makes sense somehow.