i will certainly not say that it is impossible like tons of people said about 4 boxing in the arena WOTLK!

Tomorrow we get some pretty hefty muti rogue/arcane mage and a minor feral nerf. (not possible to stack 100 energy for thoose insane feral bite critts)

Mass dispel is pretty much impossible with 1 unstable affliction on your toons, then it requires manual dispelling.