Pretty much every regular PvP player says DRK and SMN are trash tier now. I barely see any main SMNs in Chaos's Top100, let alone with over 47% win rate (comparing to some BLMs with 60% and more). The nerfs were too harsh, Dots were a good chunk of SMN's dps, but now Bio does only 160 potency over it's whole duration which is less than Ruin III. All 3 Dots are easliy healable, and are usually purified by awared players instantly before Fester, sometimes resulting in a lost AF stack and burst as it requires all 3 stacks.
The burst is very important in The Feast but SMN's is kinda weak, around 1000 potency less than bard's. Almost impossible to kill anyone with it unless target's HP is half/low.
That leaves SMN currently as a support job and not proper full force dps, with a role of weakening targets HP for melee LBs and binding with Blizzard II/Tri-bind to help a healer.