"Courage doesn't always roar. Sometimes courage is the quiet voice at the end of the day saying, 'I will try again tomorrow.'" – Mary Anne Radmacher
After using their ultimate abilities and killing almost a dozen ranged attackers in the rampart, Paul led Irene and Holly in a mad sprint away, not having the mana nor survivability to continue fighting such a large group of players.
For what it was worth, they had pushed the vast majority of enemies out of their defensive locations and into the guardhouse and curtain wall, places they could not attack the courtyard from.
No doubt their faction mates down below would thank them for relieving significant pressure from them, at least temporarily.