Multiple studies have shown that people behave irrationally in any panic situation. Whether it be aircraft or building emergencies, "common sense" often goes out of the window, and the problem is multiplied where a crowd of people is concerned.
So what is being suggested is criminalising people who are not in control of their own actions.
Prosecuting the hell out of people who pick up their baggage will never, ever solve the problem. They will always do it; in the same way as some people will always try to exit through the door they entered (even if an emergency exit is closer and it means going the wrong way) or push slower-moving people out of the way to get past.
Plan for irrationality. Much better solution.