My own headcanon definitely depicts the WoL as a melee job, which includes the tanks. When we return to Garlemald after our journey to Elpis, I couldn't even imagine doing the solo instance as anything but a tank. If I would have shown up like the hero of the day only to toss out some Broils or Chakrams, it just wouldn't be as fitting. I can make an exception for a melee job like SAM or MNK, but then the bosses attention would've been on G'raha. Unacceptable in my head.

WoL just does not strike me as a supporting role in even the slightest.