Here are a few thoughts:
Wouldn't one think that if a Jehovah's Witness really believes that his disfellowshipped relatives are going to die at Armageddon that it would be more reason for them to associate with them now?
Does the Watchtower Society really think that shunning brings a person to repentence? Rather, doesn't it build a resentment against a cruel and uncaring organization?
Is it reasonable that a group of old men who have no families of their own (Governing Body) should make decisions which divide other families and bring much sorrow and pain upon them?