Earlier quoted context omitted.
The article contains no proof except for references to documents published by the same government that is producing the article itself. It's propaganda.
.. just a quick reminder for anyone outside of dictatorships: there is independent media/press in germany, the article was not produced by any government entity.
Barely. Besides the obvious state controlled public broadcasting many publishing houses are owned by mainstream parties and their foundations. The biggest socialist party SPD for example owns more than 40 newspapers. They are de-facto state media. Also the state spends about a quarter billion Euros (!) subsidising publishers that otherwise would go bankrupt. You can't expect the recipients of that money to be neutral.
> the article was not produced by any government entity
It is clearly published by a government entity. Public broadcasting is not a neutral party.