This alone has implications. I know of a case where a JW woman was being severely beaten by her "JW" husband. She didnt want to leave the borg, and they would not give her a "scriptural divorce" and therefore would not recognize the legal divorce. She was threatened with DFing if she re-married or started dating other people.Now, I really think actions like that could easily be challenged under this law.
The elders aren't dividing anything up among the mates. That was always done by a court of law. I don't see how being disfellowshipped is something which this law can block. I know the law is about protecting the person from harmful religious rulings. But I don't think it means that this law can force any religion to keep any particular person as its member.