I guess he included Nietzsche because the man (or monkey) is responsible for stirring up a lot of controversy not just in within theistic philosophy but also amongst many intellectual rationalists and philosophers. With works like “beyond good and evil” Nietzsche is considered the father of destructive critique and has shaken the roots of all philosophies and studies on morality till present day. (Nietzsche’s theories on morality are still wildly argued amongst some intellectuals today).
So in order to prove his point I guess the filmmaker had to address Nietzsche and his elitist philosophies. By calling him a monkey…quite original from my perspective.
I dunno maybe I’m overanalyzing a rather simpler video…I think we should ask the director. The beauty however is within the simplicity of the video and the rather humble message.