no-zombie: The problem with offering a public apology, is the admission of guilt that goes with it.
Yes, this is a huge problem for them. They have always told the rank-and-file that JWs are not like the other religions, and one of the defining qualities is that CSA is not a problem in the organization because they take quick and decisive action to protect families and remove predators.
...and now they are being asked to apologize for NOT protecting families and NOT removing predators. The plate of crow that they are being asked to eat is so large that they cannot even imagine the task. To apologize is to admit that they have been lying to the rank-and-file for decades.