Mages had a very good single target dps and fire mages totally dominated Alysrazor. Mages were strong, but they had the weaknesses of arcane, meaning there were weak fights like ragnaros.
With fire becoming strong on single target, everything changed. Suddenly they had nearly no weakness, performed well on every fight.
That's the problem of Affli. A multidotting specc with high mobility and extremely high single target dps - this cannot work. Just as fire cannot work when they have the same single target dps like arcane.
http://raidbots.com/dpsbot/Blade_Lor...00000000000000
That's a single target fight, compared to the other multidot and high mobility casters. As anyone can see, why is there a so big difference between speccs that roll for about the same gear, have the same role, have the same strength (multidotting, high mobility), high surviability (at least wls and shadows).
I uderstand if demo or destro had a high single target dps to compensate for their lack of multidotting and monility.
But why Affliction?