Healers not dpsing is not an issue it seems.

[Fyce]

Most people don't care ENOUGH to warrant pointing anything out or potentially starting a fight and prolonging something most people would rather finish in a short amount of time.

That's one of the main reason why people don't say anything. Saying something is risky, and the risk is that you start a fight and someone gets kicked. Worst case, the party dismiss and you have to queue again.
So, in the end, saying something might make you lose more time than it might save.
That's why people talk about that issue on the forums. At least, here, there's nothing to lose, and no risk involved. It's another story when you're actually in a duty.


Another main reason is that people simply don't watch what others are doing.

[whiteblade89]

Another main reason is that people simply don't watch what others are doing.

This describes me to a T. The only time I'm ever able to pay attention to what others are doing is when I'm healing. As a tank or dps, I'm far too busy doing my job to pay attention to the rest of the party's rotations. The only time I realize that something is up is if dps is just way too slow. And at that point, I blame the dps players. (Blame as in silently judge them while not saying anything). While healer dps does contribute to the overall speed of the run, I really couldn't care less if a healer doesn't dps. But at that point, healing is so damned boring that I wonder why a heal-only healer even plays the game.