For the longest time, I really wanted dancer to be a healer in FFXIV but that time has gone and pass and I really don't like FFXIV dancer.

FFXI Dancer can roll as a healer using curing waltz l, ll, lll, lV, Healing Waltz, ( esuna) Divine Waltz ( AoE heals) as long as you have TP ( convert Steps into finishing Moves and use Reverse Flourish is the fastest way to get TP)

As for FFXIV dancer, it is what is it. Just a range DPS with a tiny AoE heal that makes little to no difference.

So if you want to be a healer and be a dancer, go with FFXI dancer, I don't think FFXIV curing waltz will change anytime soon