If those who shun because of an organisations directive, require same to abandon this practice then they are still of the same controlled mindset.
It is the natural act of loving association as far as close family primarily that I would have to be convinced of. In my experience those who shun to the most exaggerated degree have a problem with natural affection and may never be able to humble themselves by admitting they were guilty of such a despicable act. In my personal experience I'm afraid a change in the shunning practice would make little difference as I would have to feel genuine love.