Developing the discussion about Force Barrage against the Lord of Change: I'd just say, that since Telekinetics is transforming mental energy into physical force, it IS A PURE PHYSICAL FORCE, only generated differently. Ok, this is a psychic power so according to RAW it ignores Daemonic Toughness, but according to logic it's purely like a Force in Star Wars. You don't push something through the Warp (because Warp is anti-physical) but only use Warp to gather and amplify the physical energy to your push on reality. But still this is a normal physics-driven push. The same is with Force Barrage. I don't see why Daemonic Toughness should be negated since Telekinetics is a physical force against which Daemon is protected.
For those that would argue that Pyrokinesis is also a physical flame - no, it's not. It's a flame generated purely via Warp, and although it can flame up objects, it comes directly from the Warp. It is not amplyfying or gathering a real flame through the Warp, but it's creating the Flame out of the Warp. The same case is with other powers like Bio-lightning. It is created specifically via Warp but only conducted through the body. So they normally affect Daemon's body, since they are of the same Warp matter as Daemon's manifestation.
I'd like to ask what is your opinion on that matter. C&C welcome. It'd be good to settle this matter once a for all.
But I agree with you. My only concern was that Force Barrage was jack of all trades - players having such a weapon won't think of more inventive solutions to use with telekinesis.