As much as I hate making posts on the bottom of the page, I figure making a new topic for this would be rather uncouth.

http://forum.square-enix.com/ffxi/threads/5950

Job Trait: Tranquil Heart
WHM Lv. 21
RDM Lv. 26
SCH Lv. 30

Reduces enmity gain when casting healing magic.
Well, it seems that, most unfortunately, the devs have spoken, and have decided to get rid of the one source of enmity that we had left.

Red Mage tanking was already depressingly dead. This is simply the final nail in the coffin.