Long Hair Girl, I believe you are absolutely correct on this one. No-one can force someone to not shun another person, deep emotions, whatever they are, are certainly involved.
After 60 years of being one of JWs, (was not born in either), I have observed that many if not most Jehovah’s witnesses see a disfellowshipped person as one who ranks alongside Judas Iscariot, - a traitor to the cause, - as someone who has walked away from everything that is true, noble upright etc, to go pursue their own selfish course in life. Someone who has betrayed them and their god.
For the record, I never ostracised or shunned anyone in my life, it never seemed a Christian thing to do, and I know there were others that felt the same as myself including some very old-timers who were from the Bible Student era.
Now that I no longer associate at all, I find myself tending to shun them, I am gradually albeit if slowly, building friendships with people that seem more kind and charitable than most Witnesses I have known in the last few decades. (Elderly husband still in, sadly)
However, publicity about their shunning practice cannot go amiss as it will hopefully alert any prospective Bible studies before they commit themselves.