Personally I can't get enough of Force Push (mainly for Voidstar comedy moments!) and as currently specced 31/8/2, I have it.
There are possible setups/rotations that could make it useful, for example Force Push resets the cooldown of Force Leap, with 4*piece BM Vindicator Armor Force Leap increases damage by 10% for 5 secionds.
But removing the challenging call cooldown reduction was a bad call imo, from what I have read Bioware thought the AOE damage reduction was overpowering in PvP with just a 30 sec cooldown, but don't quote me on that..