I remember an interview with Arjen (probably it's in the bonus DVD of the special edition) where, jokingly, he said that he had to "ruin it at the very last moment" after having told a non sci-fi story.
He probably realizes himself it was maybe not the absolute best idea of his discography, but as someone said above, you can just consider it a little nugget, an after-credit sequence so to speak, that you can just ignore it.