I have a writeup on why blood transfusions and the modern medical use of blood is not against God's law as stated in Genesis. Not based on medicals but based on legals and fairness. If it is God's law, then only God can expand it to include other things than eating it. Neither the apostles nor the president and vice president of the WTBTS nor the governing body has the authority to expand the scope of it otherwise they would be like the pharisees in adding to God's law.
I'd like to send it in to the Watchtower and see what their response would be but I would need a fake name and return address for reply so they don't send it to the elders of any congregation.