Shunning DF family members is wrong.
Prodigal son account from Luke 15:20-
So he got up and went to his father. While he was still a long way off, his father caught sight of him and was moved with pity, and he ran and embraced him* and tenderly kissed him.
It doesn't say that he saw him from far away and went to his COBE to discuss his son coming to the meetings and sitting in silence for 6-12 mos until men have deemed him worthy of "hello".
Funny though in a WT study article from December 2014 "Do You Grasp the Meaning?" on paragraph 13 they have this to say:
13 What is the meaning of Jesus’ illustration of the prodigal son? The compassionate father in this illustration pictures our loving heavenly Father, Jehovah.
So why does Jehovah choose to shun family members now? The prodigal son ran out of money... he wasn't repentant.