If you are soloing it is.... I see many people complain about panopts and I've had hands on experience with these mobs tell me soloing a IT umbril is a walk in the park for most people and I'll laugh at your face... IDK about you but I still need merits and the XP these mobs provide me is delicious.
It's still benificial for my party to stay caped on MP as I cast haste, na spells, bar spells, dia and bar spells for procing HB's, and stoneskin and blink. cures for sleep and curagas for pty sleep also.