and just looking at this from a common-sense point of view, anyone who has been a JW knows that the elders will do whatever those higher up in the chain of command tell them to do
I believe that Elders and Ministerial Servants are considered employees of Watchtower by Law, so this isn't really something that is questioned.
A reasonable conclusion (and I think the one that was arrived at in this case) is that this process was in place to attempt to protect the organization from bad publicity and legal liability, with any concern for protecting children a distant afterthought
A conclusion is not reasonable when there is no support for it. The most we could hope to reasonably support is the liability claim, but everything else is merely assumption and speculation based on no evidence. I would not say that they intended to protect children, but I would also not say that they didn't intend to protect children. I simply can't read minds or personal intentions.
there are numerous anecdotal accounts
What is 0 x 100? Still 0. Anecdotal accounts are not to be used when making general conclusions. Their value is next to nothing. But what we do know for a fact is that at least in this case, nobody was discouraged from reporting to police; and indeed, the parents of the first teenager did report to police after meeting with the elders, though they never told anybody about it. And if memory serves correct, the Boer case had similar accusations of Elders warning not to report to police, but the appeals judge threw those claims out and sided with Watchtower.
These analogies don't exactly hold up because they deal with affirmatively causing harm
You acknowledge that your examples are irrelevant to the case at hand yet you go with them anyways. That is no bueno. Intentional causing of confusion in the mind of the lay reader. The more relevant Principle of Law (that you yourself even hint at) is:
There exists no general duty to protect others from harm, absent a clear special relationship.
"There does not exist a general obligation to protect others from harm not created by the actor. The fact that the actor realizes or should realize that action on his part is necessary for another's aid or protection does not of itself impose upon him a duty to take such action. In other words, the mere fact that one individual knows that a third party is or could be dangerous to others does not make that individual responsible for controlling the third party or protecting others from the danger. The creation of an amorphous common law duty on the part of a church or other voluntary organization requiring it to protect its members from each other would give rise to both unlimited liability and liability out of all proportion to culpability."
I myself haven't been a Witness for years, and I still find the Conti ruling terrifying, as should you, being a Man of Law yourself.