If this "she will be shunned" pratice would be merely the little daily "shunning" it sounds even acceptable. If it would only mean than:
We dont have so much contact any more because we dont now about what to speak or what to do togehter, but we speak with the person and we help her to remain in the community if he wants, famikly contacts remain. .... than that would be okay.
I have a neighbour , i would never invite him, because I dont like his behaviour, we are not friends, i dont want him in my clique. This is the little shunning, nobody can urge me to like him. In the congregation sometimes we shun someone too, if we exclude the person from a clique, dont we?
If you read the JWorg text you think shunning is something acceptable.
But this is not little shunning it is a group shunning.....like a group mobbing, mobbing is illegal.