Radio is different due to the safety issues it raises. If they crank up the volume or engage in similar practices in an attempt to get attention, they by definition are distracting the listener. That's not the worst thing if you're watching TV, but much of the audience for radio is driving or working. It should be obvious what's wrong with practices designed to distract drivers in heavy traffic and workers carrying stuff up ladders.
Oh man, I have a story to tell here. Some years ago my favourite radio station started airing a new commercial for a car glass repair shop. Commercial started with a loud tyre screeching noise followed by a loud car honk and finally loud car crash noise. Every effing time I panicked, usually immediately put my foot off of gas pedal and probably once or twice started to brake. Idiots 100%.
