I wouldn't be against it to give PLDs a damage reflect on block passive.

With a PLD tanking, you don't have as much aoe damage as WAR, which is fine, but if PLDs would reflect like 50 potency per block, it could make up some of the difference without taking away the WAR's advantage in aoe dps.
It would also give some use for high block rate(small) shields, a PLD could whip out a small shield for packs of mobs to rack up reflect damage, and then switch to a heavy shield for bosses. As right now, small shields are objectively worse.