I'm saying that the experience you've founded your opinion on is flawed. Your judgement in this or any other matter may be superb, but you've come to a wrong conclusion and assigning an undeserved value to your limited exposure is, prima facie, at fault. Before mercs, when a healer was required, I actually played a shaman and was taken enthusiastically in that role. The only thing that's changed is improved tools populizing the capability. More of the population know that more shaman know more about having great healing.