I am not sure where the implication that this means that anyone reporting an allegation would essentially be disassociating themselves comes from.
I understand the legalistic approach with blood transfusions that has been taken and I also know that historically pressure of judicial action has been actively and implicitly placed on individuals to keep stumm to protect the congregation and/or not repeat an allegation where only one witness is prepared to testify but the WTS has made it clear several times now that they consider it the absolute right of the victim to report an allegation to the authorities without sanction.
I am no apologist for the WTS on this and can see holes galore in their process and endemic cultural resistance to change on the matter but am not clear where the association between this current "cover your ass" move and disassociation comes.