If given a choice, who do you think they will pick? You have two shamans. One is a LW with drums, one is a tailor. Who do they pick?
See, you are not going to admit that when given the chance, the people creating groups will pick min/max every time if given the choice.
Just like people did not want to admit that paladins with seal of blood would create population issues. Blizzard came out and said that it would indeed skew population to horde so they changed it. It is a change for the positive. Changing drums would help take away needless non sense that the community can create.