DFing and Shunning were things in the time of Rutherford, as his words in this WT show :
Watchtower 1920 Apr 1 pp.100,101
"We would not refuse to treat one as a brother because he did not believe the Society is the Lord's channel. If others see it in a different way, that is their privilege. There should be full liberty of conscience."
It is interesting that this very much mirrors what the Org. wishes to achieve now, i.e that treatment of individuals who disagree with the Org, for any reason will not change from the overt practices of the past, but will be identified as INDIVIDUAL JW's "Exercising their Bible trained conscience ".
Thus the Org. can argue in Courts that it is not mandated by them, which we of course KNOW is not true, for individual J.W's to go against their natural love for friends and family would not happen based upon Scripture, but will continue because of fear of being perceived as going against the "direction" of the G.B.