They can't just do away with it, though, because too many would realize that they're responsible for thousands of deaths (and even bragged about it).
Well, they bragged about how "faith strengthening" it was for brothers to go to jail for not accepting civil service right after they made it a "conscience issue". I could see them doing the same for blood. As sickening as it sounds, I could see them printing: "In light of our new understanding what about parents, children, friends, and relatives that lost loved ones because they refused a blood transfusion? We should remember their faith as Jehovah will. Jehovah will not forget the strong stand that they took. BLAH BLAH BLAH..."