With all due respect, you have no idea what you are talking about. Affliction is a single target burst spec, no matter what blizzard says. The spec plays as a single target burst spec, almost all of its damage is loaded into a 3min cd, it's one of the highest burst specs in the game and outside of said burst does almost nothing. Nerfing DB does nothing but make the spec worse at the only thing it can really do.
And yes, aff is in fact sub middle of the pack in EP:
https://www.warcraftlogs.com/zone/statistics/23
In the future, please refrain from discussing subjects you know nothing about.