Quote Originally Posted by karateorangutang View Post
Why?
It's probably because there's more of a trade-off for a tank to DPS than there is for a MNK to use Mantra or a BLM to use Apoctastasis. Those are off-global abilities that don't generally cost DPS for the person to use. When tanks are pushing for DPS, there's more of a risk involved--it's not always a huge risk, especially if the tank knows what they're doing with cooldowns and the like, but there's a risk. There are similar back and forth discussions on the healer forums with regard to healer DPS that seem to be rooted in the same thing to me.