Paladin has Divine Magic skill, too, but your point is taken. Swapping in a wand (or even worse, using it as a main) for Banish series and Flash is the worst thing a PLD could do.
Hmm... this holy wand looks like a perfectly good waste of a mythic wand... RDM and WHM are the only ones with Divine skill, RDM has better enspells and WHM would only burst Banish III or Holy on a Fusion/Light skillchain...
RDM may have Divine Magic Skill listed in their Magic Skill Menu, but we have no divine magic spells. This item is worthless for RDM if subbing anything other than WHM. Just turn it in for the guild points. Mythic Wands on Asura go for 5K on the AH.