
Originally Posted by
ArianeEwah
As I and aodhan have said above: in the scenario that OP describes, there is already a MT, and they want them to take 2 (or 3) tank busters at once when there is 1 (or 2) tanks missing/dead on the ground. In alliance raids, you don't need tank stances on one boss except for the MT, and you shouldn't use it either. It would turn into an aggro fight, as you have no freaking clue how much aggro the other generates until you rip the boss from them. And then we would be back to square one.
If everyone would have diversion and use it on CD, their enmity ranking to other dps will most likely not be any different. And if healers don't have any aggro dumps, they will be targeted next, and that would be worst case scenario!
The importance of roles (in general) goes like this: healers -> tanks -> dps
While dps and healers can hold without tanks for a little while, they wouldn't survive busters.
Without a healer, everyone will die sooner or later, so they are essential for the survival of the party.
Unless there is a hard dps check, the dps role takes the lowest priority.
(With skill and gear, some of these points may lose value, but that is just for the general case, just as alliance raid.)
STILL: just because your role is more important than the others, don't act entitled. You have responsibility, so act like it!