When there is a limited amount of radio or television bandwidth to broadcast over, someone must decide who gets on and who doesn't. When, again as with both radio and television, the area over which a broadcast is made is local, then an agency like the CRTC can have some faith its regulatory decision has weight. The Internet isn't like that. It has no regulatory handles. It is simultaneously everywhere and nowhere.
People decide where they want to go on it, and what they want to use.
In this it is more like thought than anything else, and as thought is often quite subversive. To be fair, the CRTC says that it merely wants to look at issues relating to the Internet. It is not immediately proposing to regulate it. And to be fair again, it is fundamentally concerned about the availability of Canadian content and programming on the Net. But the method by which the CRTC has always ensured Canadian content is fraught with potential abuse.