Personally, I have a deeper hatred of DPS not dodging easily avoidable AoE's during trial battles and then blaming the healers for not keeping them alive... when said healers are practically blowing through their MP and Aetherflows just trying to keep them alive.

But I agree. There should be a training program for proper Tanking. I don't mind speed runs, so long as the Tank in question can actually hold aggro. Proper training missions that teach them how to do that would be nice. Lord knows I've seen my fair share of Tanks that have no idea how to hold aggro and, in certain battles, move the enemies around to put them in a position where they DON'T have the advantage. *Remember's Brayflox NM run in which the Tank did nothing to move the final boss out of the poison puddles*

EDIT: My first post on this forum. o.O