Yeah, he died, not real heroically, not too badly either, i mean, all the jedi got slaughtered in a few seconds. What's so great about how Ki Adi Mundi died? He was killed while doing less damage to his attackers than the Padawan at the Jedi Temple. They had to die, and they had to die in about 15 seconds of total screen time. I honestly think a duel b/tween Koon and the emperor would have been overkill, repetitive, and boring. How many vrs. Sidious fights can you have anyway?