I agree with Crazerk, both Butcher and Belial in Inferno have a DPS requirement, I am not sure about the other 2 as I am yet to do them, and on top of that if you take too long on Elite packs, they will enrage (Found this out on a Fast/Mortar/Shielding/Extra HP pack).
As for the casual argument, they have a right to play, no one is denying that, but do they have a right to complete inferno if it means making it very easy for those of us who are putting in a lot of time on it?
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