Stormwind humans, in the most basic sense, follow The Light. Hence the cathedral square in their city, their king being a Priest/Paladin or whatever that crybaby pretends to be.
Would be strange for a sect of them to disregard the Light and follow a bunch of Elemental spirits instead.
I thought we were discussing the idea to imbue humans with the powers of the firelands-- which is also seen with the Druids of the Flame. Odd they never worked together.