I did ask the HLC members a few questions but it is very difficult to get any reasoning with them as they were just WTBTS drones who parroted everything that the society say (one brother kept on talking about "direction from Mother" so he wasn't exactly the best kind of guy to reason with! They were full of the latest medical advances in "bloodless surgery" feeling that this vindicates the WTBTS (for example there is a new synthethised form of the anti - rhesus negative jab coming out that doesn't require a blood fraction.
The main vibes that I got were the underlying feeling that the WTBTS wants it both ways - they very much want to disassociate themselves from any legal liability while wanting to enforce a 100% take up of the AD forms.