I am assuming that PGLAF is owned and operated in the US. "PGLAF has no actual presence or activity in Germany".
I suppose the Berne Convention allows US police to honor international court orders for copyright violation, but what's to stop a country from making a ridiculous law that extends the copyright length to 2100 years, creating court orders for the 1 billion people who own a Bible or other old text without paying license fees, and collecting all the money in the world?