Over here all blood is fractioned for transfusion anyway, something which the HLC et al seem unable to grasp. I also know of a local consultant haematologist who also became so exasparated by the whole JW blood issue that she phoned their HQ in London for an explanation of how their policy worked. They were clueless and totally unable to explain it to her.
At our local hospital a few years ago a JW woman haemmorhaged in childbirth after refusing a transfusion. Her non JW husband was left without a wife and the baby without a mother. All down to the confused policy and the "assistance" of the HLC. As a consequence, they're not very popular.
Clam