In WOD/PTR Druids seem to be using Moonfire/Sunfire using the healing animation. I know its minor, but it sorta bothers me. Not only does it look a bit goofy, the instant damage spell animation for night elf is way better than the goofy healing one lol.
Well, from a "roleplay" point of view it makes sense that you lift your hands to call upon the astral energies to shoot a fiery beam of nocturne light to strike your foes. Plus it looks awesome if you're a male tauren (imo)