There is no despair so absolute as that which comes with the first moments of our first great sorrow when we have not yet known what it is to have suffered and be healed to have despaired and have recovered hope.
I think it's because it's so different and it takes risks. Plus it's really smart humor. It gives the audience credit in terms of not needing to tell them when to laugh. I love that about the show. There's no laugh track.