Like, the cutscene specifically moves that mage ahead of your front line fighters.
For no god damn reason.
So while I need her spells to deal with the massive pile of hasted, level-draining enemies, she's too busy running from the hasted, level-draining enemies because they spawn right beside her.
But of course, it's second edition. Every encounter can be solved by meta-knowledge. Cast a bunch of buffs and summons because you know a fight is coming, throw out all your debuffs, throw out all your nukes, use your heals, rest, repeat.