In the art world something is "edgy" if it might well shock ordinary folks, but of course not in-the-know folks. The idea seems to be that ordinary folks are shocked too easily by things that should not really be shocking.
The opposite concept, which I’ll call "anti-edgy", is of something that does not shock ordinary folks, but should. In the know folks are shocked, but most others are not. Why does the world of art and fashion emphasize the edgy so much more than the anti-edgy?