" Insolvency might."
Yes, if they are arraigned in Court for the Shunning of the past, they will have to defend themselves, to avoid paying $$$.
I am sure such cases will not be totally successful sadly, to the extent of getting the Org. to abandon such practices, but the cost is still there for the Org. and maybe in individual cases even compensation may have to be paid, but I do not see any Court actually ruling that the practice of shunning cannot continue at some level.
What is not in doubt is DFing and Shunning go against several basic Human Rights, so such Cases will highlight this for the whole World to see, and the Org. will shoot themselves in the foot once again to protect a few $$$.