I guess it depends on who you are, but I'm someone who likes listening to artists explain how a song was written and what the song means to them. Some people think it takes away from the song because it can throw off their interpretation of it, which I can see, but I personally think it can enhance the song. I have to see it from a place I might never see it from.
I hope Jimmy Fallon does more videos like this when his musical guests come in. Listen to One Republic explain how "Love Runs Out" was written.