Great advice. I think we're sometimes as MMO players trained into breaking off the boss and burning down the adds, but in this case, it's a formula for a one shot death. Stay on the Emperor, interrupt his inductions, and if you're able to do that, the fight isn't bad at all. I completed it on my second attempt (missed an interrupt the first time) with a Hybrid spec without much trouble.

Completed this today with my 35 Seer specced Sage. I had to make sure Qyzen was appropriately geared, and Force Lift is definitely essential to keep the baddest mob of the group at bay while burning the other two down. The only one I really had trouble with was the group w/ three strongs in the back. I simply burned down Qyzen's target ASAP while he had his bubble, then spam healed him as he fought the second. He ended up dying and I slowly took the last strong out. Tough quest, but not impossible if you're well geared and patient.