read the post below you from Dakara and educate yourself about how unique gameplay is tied to each spec.
Of course they can rework feral and guardian too, but that would really take away from their nature unlike balance chicken.
The initial release of WoW 1.1 did not even have moonklin to begin with, while bear and cat have always been there.
The final talent was Hurricane instead of moonkin. look it up.
It brings exactly 0 new abilities, unlike cat and bear which have all their abilities tied to the forms.
Educate yourself, and stop embarrassing yourself with your moronic view