Do NOT make the same mistake as FFXI.

[Powercow]

Pro-Tip: You CAN stun certain AoEs with certain skills. People would know this if they actually tried a normal party setup and not just resort to ranged attack BS.

Care to share which of the Ogre's AOEs can be stopped by which skills?

You keep saying to think more while fighting, and yet you don't seem to be willing to suggest anything.

Oh, and I'm going to get two of the obvious suggestions out of the way:
"Move out of the AOE, duh!" - First, he has three aoe attacks, an aoe stun, and a single-target punch (in addition to his normal melee attacks, all single-target, and his ranged attack, which does fire AOE damage). The stun has a unique animation, but the punch and AOE attacks all share the same one. In addition, his AOE attacks are as follows: a large AOE attack in front of him, a large AOE attack behind him, and a large 360 degree AOE attack. Reading what skill he's using the in combat log is incredibly difficult, but knowing where to move is just as difficult. But if, and that's a BIG "if", you can determine what skill he's using and move appropriately from whatever 2 out of 3 AOEs that will hit you immediately, you'd STILL lose a lot of uptime on the boss. Meanwhile, ranged don't. Ranged can focus on maximizing their DPS rotations while having 100% uptime, resulting in drastically higher DPS and a safer, more entertaining fight.
"Bring self-healing skills, lol!" - Second Wind II, Bloodbath, and Cure II are woefully insufficient to stay in his aoe and not die. Healers most certainly can not spare the MP or threat to heal you, unless you bring 4+ healers (lol).