Morpheus,
while I get what you are saying, I believe that you are missing one important point. In that, your view is that of a person who sees the religion as it really is ... but the people (and their children) at risk do not. They believe that it is 'the' one true faith and as such follow the rules of that faith, which includes viewing the Elders as judges. The rank and file Jehovah's Witness can only see things through that lens.
For that reason, its only by external pressure or exposure that the danger of sexual child abuse can be lessened, as the Organization is clearly unwilling to revise their own policies.
An before you bite me head off, I also understand the big difference between dissdelowshiping someone and justice, particularity in regard to this problem ... however if the goal is to purely reduces (and hopefully stop) child sexual abuse within this religion, then any action to that end, which includes the removal of the two witness rule ... is worth the effort.