I'm glad you agree with me
it is more difficult than Hard mode and Nightmare mode Ops
You need a healer in no less than full Rakata.
The rewards do not match the difficulty level.
Sentinel Marauder advice
Get a tank that moves the boss around the edge of the room. you cannot keep him still if you have melee in the mix. there isn't enough time to get the balls far enough away. stay behind him and help interrupt incinerate.
It's much easier than that. We cleared it with 4 people in columi with a couple pieces of rakata on our alts. Infact the healer had some tionese still aswell as battlemaster gear. As stated before it is mechanic heavy but not very healing/dps intensive at all.