Both pve and pvp players will be happy. Im pretty sure there are situations when 5sec silence>stun in m+ situations. Also it will unlock 1 pvp talent.
Instead in pvp talents (at least for fdk) You can add some healing absorbs mechanic. Honestly i miss necrotic strike. Healing absorb baked into obliterate would be awesome too. Right now we are punching bags between PoF windows.