Funny conspiracy theory but I have to say that following Occam's razor I would have reach the conclusion that it was indeed Goebbels who was behind it all as the presumably correct historical explanation is quite convoluted.
On the other hand for the Goebbels theory to be plausible I only need to evaluate: Did Goebbels have the power to influence this all across Europe? Yes he definitely had the power to do so.
Actually it wouldn't even be that crazy to believe this as the Nazis believed in all kinds of crazy mystical druid magic nonsense. (That Hitler could have sent people to search for the Ark of the Covenant as depicted in "Raiders of the Lost Ark" isn't that far fetched)