I wonder if she was in the minority, in her thinking. Would JWs of today take the blood or give it to a loved one in a medical emergency?
JW have spent years in concentration camps and then commit immorality. Most JW that get df is for immortality. Even those JW that succumb to sexual immorality would not have accepted a BT. The great majority of JW would face death instead of a BT. Giving blood to a loved one is a different question.