Lol, it wasn't a legitimate move. Nukes and such are weapons of last resort. Garrosh could have assaulted Theramore with conventional means easily. As a sane leader of a nation, you generally try to avoid even bringing things like "Mana Bombs" into the equation, period.The bombing of Theramore itself was no atrocity, it was a legitimate move ,a dick one but legitimate nonetheless, of course the Alliance can demand reparation for it, but thats about it.
Horde apologists are so funny.