I was thinking about how the WTS predicts how Armageddon and the GT will unfold. It is really just fear mongering that encourages the cult mentality.
They want JWs to believe that survivng the impending disaster, is dependent on them belonging to the group.
It is not just Gods war on mankind they have to worry about, it is the authority's turning on JWs as a group. They teach them that they will have to be close to the congregation when this happens, which could be anytime, and this keeps many JWs scared and involved with the group.
It is totally bizarre when you are out of it and so obviously a cult, but the poor JWs are trapped in this cult thinking.