Kenobi's lack of force defenses are his downfall every time. Starkiller isn't that good of a duelist, so that's two big weaknesses for the team. The non force sensitives can be oneshot by Malgus's TK waves, and or blitzed.
Malgus should take this 5.5/7-10. If Kenobi had better force defenses the team would win, but Malgus utilizes TK and lightning frequently which is a death sentence for Kenobi. Starkiller will fall in a duel against him.