The idea seems to be (again) that people seemed to have no issue with my caster holding every mob (so it couldn't fight back at all) and keeping them raged and hasted while they beat down the helpless mobs with any number of high crit weapons.
But let the caster kill something and suddenly it's not fun?
The answer is fairly simple.
If you don't want casters to kill something, run epics without instakill capable casters. Run with 4 melees a bard and a cleric. Make your own groups.