You know, a penalty WAS given for that episode. Though Coco was blooded with impunity, Del Piero was elbowed in the face and Totti was sent off for getting taken down. And of course Tommassi's goal was disallowed, but that's only natural, it was an Italy goal.
The strangest thing was that Totti got his first yellow card because he elbowed someone, but not deliberately. When Moreno saw a Korean elbowing Del Piero in the face, clearly deliberately, he decided to give Del Piero a warning.