I understand your point Simon, however, I found the documentary very educational, because not only did it emotionally affect me (and many others), bringing tears to my eyes, particularly in the young woman's case, but also the fact that it highlights the emotional blackmail of shunning that such groups use to keep their members captive! Another good thing about this documentary was that it actually helped sow a seed in my daughter as helped her see how crazy shunning is 'in another faith group'. I was also able to get the point over to her, by saying believe it or not, but we (JW's) also have somewhat of a similar policy, but assured her that her mother and I would never ever ever shun her in future if for example she simply chose to leave the JW's.
There is not a lot I can do to help such a group as the exclusive brethren, but as someone who is consistently active in writing letters of appeal to the heart and soul of the watchtower organisation - the GB. I am in some small way trying to change such a ruthless policy. Somewhere, right now, there will also be similar people to myself (and others) within groups like the exclusive brethren who are likewise continuously writing to their leadership to affect change on policies such as shunning. It is up to those within such organisations to actively do something NOW. It is my hope that change will happen over time just as it has happened with other organisations when put under continuous pressure.