One of the comments from the above article (from Stephocles) stated very well how JWs bring this spiritual dilemma upon themselves by treating child abuse as a SIN instead of a CRIME
Good point Dumplin, that is their problem. They stubbornly chose to treat this just like any other sexual sin, despite a mountain of evidence that people who have had sex with children will almost always continue to prefer to have sex with children. While it's possible that they can refrain from doing so, it's not at all a good bet, and pretending otherwise has disastrous consequences.
Instead they seem to engage in magical thinking, that everything will be OK because three elders, who have no special training or knowledge of pedophilia, decided this person has repented and is not a danger.