Why encounters with a difficulty slope are bad

[kyuven]

Conflags, Titan Egis, and Bees in T6 are good ways to do DPS checks, you don't need a hard enrage to prevent turtling.

Of special note, though, is that most fights with DPS checks ALSO have hard enrages.
Hard enrages are sort of necessary to keep fights tight and encourage dps to do more than dodge and hit a few buttons on tougher fights. You need the gear, skills, or both to meet the enrage timer, which is in reality just a simple time limit on the fight itself to nip situations like Pandemonium Warden and Absolute Virtue in the bud in terms of length, and to mitigate the viability of carry groups. Of course it doesn't eliminate carry groups at all, but in order to do so you actually have to be damn good at the fight to be able to manage it while down a DPS
It also means you're guaranteed about 6-8 full attempts on a given boss at a minimum.