Since we have such an outrage going on with the "Hard to Kill" buff why dont the devs add in an "Easy to Kill" debuff as well.
This debuff would be applied to mobs in the quest UNTIL they were hit with any damage. It lowers fort save on insta-kill spells by 20 and sets their hp at 100. Then those players that wanted to simply wail and FoD could do so... AND there is even a reason to not take melees because hitting the mob would make you have to deal with it in a more normal fashion.
I mean, this is really what they want right?