Originally Posted by
Valyrian the Moofia Boss
I brought this very topic up when the cinematic came out years ago. It doesn't make much sense
Sylvanas is here, which means that her Val'kyr are more than likely present and ready to revive any Horde who fall in battle, as well as animate fallen soldiers.
Thrall, Baine, and Vol'jin are deadly warriors who can call upon spiritual powers to aid them.
and fifty orc grunts
VS
Varian, who's on even footing with Lor'Themar as the elite warrior
Jaina, who's just one wizard
and fifty Alliance warriors
Given the lineup, it really does not make sense for the cinematic to imply that the Alliance could have won right then and there. Oh yes, the Alliance forces certainly could've broken the Horde at Orgrimmar that day, but to say that Varian and Jaina would've won that specific fight in the Underhold is ludicrous.