I received an e-mail from a fading JW (used to be an Elder). They were having a vist from the CO also at the time. In speaking to him the CO said that the reason for the change in meetings, was that after the child abuse cases they settled. It was found that the WT could be held responsible for anything that happens in a home were a WT authorised meeting is held.
Whether that COs view is true or not who can say. The JWs have a knack of making up reasons why something happens.