"Lustig" means "funny" (as in Funny ha-ha") or "amusing" in German, which, according to one's viewpoint the article may well be.
It's a load of complete and utter bollocks, anyway. He doesn't have a clue about what he is writing about.
It seems that this airhead has written the article for the sole purpose of shamelessly promoting and advertising his forthcoming book. (See his final paragraph if you ever reached it.)
Atticus - I for one become ever more surprised by your increasing propensity to post links to such utter crap. I thought you were rather more professional than that!
Maybe the time has come for you to relinquish your "Resident Remoaner" status here and the enormous chip you nurture on your shoulder following the result on 23 June 2016 and realize that Brexit is actually going to happen?