About four weeks ago one of my relatives had the announcement made that he is "no longer one of Jehovah's witnesses". From what I'm hearing the shunning began immediately. In fact his friends had a get together with him the night before the announcement as a final farewell.
atypical you stated are they are expecting everybody to draw ;a specific ;conclusion, from something that wasn't exactly announced, and then enforce the punishment. - YOU BET THEY DO.