I'm not talking about tank busters, I'm saying magic attacks in general, T13's Flare Star for example it was a heavy hitting mechanic that benefited greatly from -10% INT. I'm not sure what you're talking about.. How often in any extreme primal or raid fight has there been "periods of low AoE"? There is always something going on in a primal/raid boss fight, having any form of extra flat damage reduction is fantastic. The less your healers need to heal the better.

If WAR uses Equilibrium for TP then they lose the burst heal, and in reality when MTing TP is going to be about the same. There were only a few fights in FCoB where I would run low as WAR/PLD.