The scepter of the tides returned to Kul Tiras
Jaina's brother is given back to her
Zandalari Navy half destroyed
And what did the Alliance gain out of their war campaign?
They succesfully defeated the San'layn
They killed some blood trolls
They succesfully destroyed the troll navy
And the Horde loses Rastakhan while the Alliance loses... no one.
As a Horde you literally are an NPC in this storyline if you don't support Glugfang and the Alliance over Sylvanas.
How isn't the story bias? Yeah Horde can choose 2 shitty options instead of getting the baseline shitty one. Woo hoo.