The people of Southshore were Lordaeronians, they defended their home and they ran indeed, still I find dying by some kind of plague, which can melt you alive worse than a bomb that kills you instantly. It is the same reason i want to be directly by a nuclear Warhead in case of an all out nuclear war, it would be instant and painless, but if you are in a border region you will waste away.
---------- Post added 2012-06-06 at 09:47 PM ----------
The blood elves would have been neutral again, and Garrosh wouldn't have had his bomb, but they are more or less shackled to garrosh horde right now, they have to help if they don't want to be seen as a liability by garrosh which would be a disastrous outcome for them.