If Anduin didnt have Mass Rez?
Watching that cinematic again it seems like had Anduin not mass rezzed his Army he couldve lost that battle.
It seems after Sylvanas Banshee screamed wiped out the alliance front ranks and rallied the Horde the Horde was about to break the offensive and score a crushing defeat on the Alliance infact it looked like Genn was even killed.
So how do you think the battle wouldve played out had he not had that OP spell?