Allow me to introduce you to the highly interesting materia stats of FFXIV:
You have:

+damage
+damage(again)
+damage (worse)
+damage (somehow even worse, tanks only, marginally more tanky but your CDs do the heavy lifting so who cares)
+skill/spell speed (borderline abandoned concept)
+piety (lol)

Crit/DH just happen to be the best +damages