If you observe the changes made over the last couple of decades, it becomes obvious that any association among JW's that isn't controlled by Brooklyn has been discouraged. The group study with it's after-study refreshments and chit-chat has been abolished. The 10 minute break between the public talk and the WT study has gone. The same for assembly meals with their sociable food line queues.
They just don't want anyone socialising outside their control!