So I assume in all those cases it was really just the sound without the header, otherwise that would have gone hilariously wrong. How come this happens again an

So I assume in all those cases it was really just the sound without the header, otherwise that would have gone hilariously wrong. How come this happens again and again though? I'd assume someone who does research on how to generate that tone would also learn that it's illegal to broadcast it. Or if it's in some sfx database the channel or studio has access to, you'd assume it would have an according warning notice attached to it.