I did this with two other healers. We were not geared. At all.

My sch is not +1. I do not have full dl. And 0 af2 allagan.

The first whm decently geared. The second whm had a Ifrit stick and full dl.

We had 1 bard. Brd battle voice mages ballad. Only cast directly after each blast. You never run out of mp.

It's not even remotely hard or taxing. It's dumb and the people that couldn't clear t2 are now on t4. Just think about that.