Yes, some were DF, some have lost children to the blood issue, some are shunned by family and friends and they are also unable to see their grandchildren and have been prevented from attending the wedding of their own son or daughter. Yet, they move on. The Watchtower is no longer a god but neither is it a satan. For them, it is simply nothing.
If something has affected your life that greatly then it will be very difficult to move on, especially when you know it is still affecting other people in the same ways. Would it be right to "move on" when you know others will be hurt as well? Whether or not the organization has bad intentions isn't really important. They are damaging people's well being, some have been damaged more than others.
It is also true that many of the things JWs are criticized for are being done by other religions. The difference is that JWs set themselves up as the one "true" religion. They put down other religions but do the exact same things in a secretive way. So I see nothing wrong with them being called out even over seemingly small matters.