And he's not saying "do what you love" either. The word "love" appears only once in the article, and that is inside a quote. He's saying "do what you can't stop thinking about." That is not the same as "do what you love."
It's maybe hard to know "what you love" but it's easy to know what keeps floating back up in the top of your brain, even if rational you says it might not be the best use of your time.
Then again if "Dance Monkey" won't stop playing in your head... doesn't mean it's great art.
Then again if "Dance Monkey" won't stop playing in your head... doesn't mean it's great art.