People tend to call a type useless without knowing what makes a type good. For example, people often criticize Poison for being so godawful and terribad and crippling when the type is actually seen as desirable for defensive reasons (namely Fighting resistance and eating Poison Spikes) by competitive players. You see something similar when people are asked to "buff" types.
"Murder of the living is tragic, but murder of the idea is unforgivable." - Janus, speaker of the synod