I would guess you think they are healers to make such a statement? Because someone seeing me holding a crescent wrench and assuming I’m a professor of English literature makes about as much sense as the conclusion you’ve posted there.
What’s more likely is that clueless noobs will look at low damage meters for evokers and decline to invite them to future runs, all the while missing out that their own dps was increased by an insane 30-35%! Their loss–I have no sympathy for them. Augvokers will be a must-have addition to every group with a clue until Blizz nerfs them considerably.
Proof that their buff, when stacked, isn’t just OP, it’s horribly broken in favor of players (i.e., 2 DKs doing 3 million dps in a heroic raid lasting 20-30 sec per boss encounter).