Thank you for the effort put in to get this additional clarification.
It had never occurred to me that the WTS plays so loose with the clergy/penitent privilege. But what they state fits with my experience- records are kept for publishers, including who was DFed and why. The moment these are shared, that breaks the confidentiality they profess to hold sacred. And they may be shared at least a few times. With the branch office, with the HQ, with new/incoming elders, with elders at congregations the person moves to, and so on. And also... from conversations between elders and other people, including maybe those who aren't elders...
I think the law in the UK and Australia says that for CSA cases, this confidentiality must be waived and the authorities notified. The Australian RC investigating the WTS found that, contrary to the WTS's and elder's claims that they took CSA seriously and worked to protect children, they treated CSA cases like any other issue. And in some cases, they treated those other issues as more important than protecting victims. In the cases the RC heard, the clergy/penitent privilege does not explain some of the actions taken (or not taken).