I've done this dungeon with 4 different parties as a Scholar and we have failed 4 times (people would give up, time runs out).

So far phase 1 is cake, we had managed to DPS all but 1 or 2 of the moogles. No problems.

Then comes phase 2. Usually one of the following happens and then the party wipes:
1. One or both healers get charmed, stand in AOE and die
2. One of the tanks cannot hold hate on the paladin/warrior, they come to the healers and kill them.
3. The Warrior does that huge green AOE circle wiping the party

We tried to have only 1 healer get hit with the charm but when the other healer starts to clear the charms, the tank not being healed dies. If the DPS are the ones that get charmed - healers are safe, but then there's no one to stun the blackmage/white mage's holies/flares.

Either way I feel like there seems to be no wins in sight and I'm wondering what exactly can be done about this? Every guide I've seen says something different. One guide says for ST to grab Warrior and Paladin, another says for the MT to grab King and Warrior and have the ST only grab the Paladin. Where should the healers stand to avoid being charmed? Is there a clear and concrete strategy that has worked for anyone?