Where did you see an Operative Buff? Both specs have been nerfed in 5.4
Annihilation not the Top class? Sure looks like it http://parsely.io/parser/leaderboard
Jugg is far from top class
I agree that the Dps check are thight, but it is the point of a dps check, they are still doable. My group continue to progress in Master mode. The elusive "Target dps" is too low for the range specs and some melee (Concealment and maybe advance prototype and rage jugg), But all Mara specs are in a great place right now.