I mean, I'm pretty sure that if there was a DPS job that happened to be significantly more squishy in comparison to all other ones, to the point where healers/tanks had to spend extra mitigation on them just so they could survive raidwides everyone else passes at minimal ilvl, then that would also be seen as an issue. Would you also dismiss concerns about such situation because "you're a dps, if you want to be tough, play a tank"?