Is it really?
How do you suppose you will alert people to actual emergencies when TV broadcasts are full of the Emergency Broadcast System tones being used to announce a very special episode of "Sean Saves the World" or a new $5 Pizza Pizza lunch combo?
Good point. It was something I did not think about. All we need would be TV commercials continuously irritating us with that nasty emergency alert tone and Burger King showing an emergency alert for its new $2.95 buffalo wings.