The battle was not over as they came over to help the Raven Monarch's force. Of course, the Dominion's army retreated after finding out the main army was retreating. The battle was over after the mercenary guild won their battle.
General Ravenbarch and Mercenary Guild Leader Alves immediately instructed the subordinates to move. The enemy already knew their camp, and more would come for them. Staying here longer would put them all in danger because the Dominion might send their elite to stop them from helping the Sorcerer Monarchy, which was currently leaderless. Half of their territory had fallen to The Dominion, and three out of six potential successors also had fallen to The Dominion's cruelty.