Yes and no. EP nerf is huge in terms of damage, specially for Greater Rifts where mobs have a ton of health. Still, monk as a support is amazing. Cyclone Strike alone can multiply your efficiency by a LOT and since Crusaders are not really great for AoE, u will still need something to group mobs to remain efficient. Sure, u can always go with Condemn Vacum but the range is pretty bad and it has horrible cooldown. Also the debuffs and buffs are still there so is not GG for support monks yet.

Maybe just switch to a DPS monk build, keep some support skills and see how that works, I dunno. I'm gonna wait 1-2 iterations of the PTR before investing time on it. Already working on my wizards to see if I can make them work in 2.1.