Oh but it does, Baine would get his spotlight, the Alliance would pillage through Mulgore in the beginning slaughtering their merry way towards Thunderbluff. Baine doesn't have to die, the Alliance only needs to start the conflict, they don't have to succeed there. The Tauren would push back and the rest of the horde would come together, like the Alliance after Theramore.
And then you could have other war theaters.
She even liked him