No no no! Don't trust the "advertisement" translation of the NYT, this is german law legalese!
"Werbung" does mean (a promoting) advertisement, but "Werbung" in the sense of the law can also mean any mention of something at all if you perform the same something, e.g. you are a doc and peform abortions => if you mention abortions (the word alone is already enough!), it's technically "Werbung" in the sense of the law.