They're elite scavengers and masters of resourcefulness who've survived for centuries in an environment designed to kill life all the while surrounded by creatures and enemies hunting them at all times.
Anyone who says the Vulpera don't belong in the Horde because they're too "cutesy" obviously didn't pay attention to the Vol'dun. They're as tough as the Darkspear, can be as vicious as any Orc, and are as cunning as a Forsaken. They ARE Horde.
Also, they're Jawas...