Well that is a silly argument.
If a DPS healed, then the run would go slower and the group would be at a detriment. If the Healer DPS'd then the run would go faster and would be overall better for the group.
Do you ever ask your tank to stop attacking and just spam flash, because dealing damage is not his job? The idea is rather absurd.
As for me, well I never tell a healer off for DPSing, I just assume that they are either lazy or bad. It's possible they are neither, but that is all I think. I mean I probably equate it to a healer seeing a DPS never dodging AoE's, that DPS is probably lazy or bad.
