Blizzard is just observing what people find fun. Wizard players are able to dodge almost all attacks through Hydra + Blizzard kiting, and they say over and over again that this isn't fun, and that they want it changed.
The players who want 100% dodge are biased, and partially lying. They prefer competitive tactics to be unfun because it limits competition, and they want the 100% dodge so they can farm chests and flood the AH without really playing the game.