Catharsis isn't art. You can't rely on catharsis to get a laugh. Because guess what? People do laugh when something's shocking, but that is, to me, the absolute fakest of laughs. That's not something that sustains a television series, or a movie, or even 45 minutes of a stand-up set at Carolines.
Just because one likes to cook up a great meal or decorate their home doesn't mean they have to do it with granite counter tops and duck a l'orange.