You have 10 DPS to choose from, and they fulfill the same role when they queuing for duty roulette and trials, Dancer could have been a healer that uses range attacks and dances for heals, it would have been something truly unique from the other healers.

DPS

4 melee physical, 3 ranged physical, 3 ranged magic

Healer

0 melee physical, 0 ranged physical, 3 ranged magic



A ranged physical healer could have break that mold, IT could have been DANCER, we really need variety among the three healers a final Fantasy XIV and dancer COULD have been just that.