Fisherman has, in principle, made a couple of reasonable points. There is a privacy aspect to the release of confidential files, especially in the case of where essentially you are talking about allegations as opposed to proven cases of abuse. As a parent I would also say that there is a responsibility on them to ensure their children are as safe as possible.
However, in the context of the larger picture about JW child abuse, these are red herrings.
The courts have determined there is legal merit in the WT releasing the information from their files and they could easily cooperate with the authorities to ensure data is handled in a responsible manner to ensure that justice is served to everybody's benefit - especially the victims. Right now the one group left out of this loop of justice are the victims and it is simply immoral for the WTS to ignore them on the pretence of protecting others.
As for the responsibility of parents there are two obvious issues with a blanket statement about their responsibilities. Firstly, a high number of abuse incidents are perpetrated by at least one parent, sometimes with the knowledge, even support, of the other. Other close, naturally trusted, family members are also abusers. Secondly, the WTS breeds a culture of trust amongst it's members. Where you have elders abusing their position to abuse minors then you cannot simply transfer the blame onto the parents.