Quote Originally Posted by Gnova View Post
The abuse potential is too high.

It would end up with healers that want to switch to DPS and use cross class abilities to heal the group so the run will go quicker.

Eventually it will be expected for the healer to do this and for the tank to be overheated to accommodate the gimp healing.
This and hybrid classes/people with healer or tank alts end up getting screwed in the process. zIt stops being "i get to play the class i want" and becomes "I have to play the class this group/raid needs".