I seriously don't see why she cannot be a dancer. Would it be much different from, say, SMN/SCH sharing Acanist as a class? MNK/DNC sharing Pugilist. Except we KNOW there won't be any class-sharing jobs against because SE is not happy with SMN/SCH sharing a class. I just find it silly to think that she can't be anything other than a MNK because her movements are obviously sharing strong similarities with Monks.