This is wonderful! Watchtower has put its foot in its mouth, and then shot itself in the foot!
But look! Running the web page through Google Translate reveals this interesting detail:
Should Jehovah's Witnesses lose their registration as a religious organization, they lose the right to claim state subsidies. In addition, their right to marry ends. They are, however, free to practice their religion and their activities independently of a public registration, according to the State Administrator.
(my bold). They would miss having the right to perform weddings, I imagine...?