In all probability it was meant as an explicit warning to remain loyal to Jehovah (THEM) because the end is imminent and more than ever they will need to depend on Jehovah (THEM). I think the whole convention is meant to really cement and condition the mind of the friends that loyalty to Jehovah (THEM) is a matter of life and death. This convention is a prelude to a major change in one of their teachings perhaps the 1914 date. It just reeks of emotional and spiritual blackmail.
The GB knows their time is up and they are now grasping at straws and playing the only viable card they have and that's the mind hold over members.
How sweet it is to know these GB maggots are sweating bullets trying to figure out how to keep their power over the friends. Hahahahaha!!!