Some people confuse free speech with freedom to be offensive, even hateful. Or, as what happens more often, the freedom to be juvenile in order to get an audience, which often degenerates into being offensive.
I've no problem with the CRTC decision to yank a station's license. When I worked in radio, too many stations thought the only way to survive and make money was to go this route. In some cases it worked. However, it's very difficult to take any pride in what you do when what you do is find new ways to appeal to young people by being vulgar, or appealing to a "mass" audience this way.
I think it's insulting to young people (though they generally have a greater tolerance for it than the old and calcified).
Anyway, I got out of commercial radio largely because it had become so mind-numbingly stupid. In the years since, it appears little has changed. Well, maybe the degree of its stupidity has changed. It's become worse.