I'm technically still a JW but yes, I would accept medically necessary blood. I would also authorize for my immediate family.
One of the more emotional symbolic things I did while waking up was rip up my executed Advance Medical Directive. Fortunately, I never provided a copy to the congregation nor to any medical professionals. I was given a new one maybe a year ago and promptly torn up the blank copy.
It was quite therapeutic to destroy that symbol of control over my individual decisions. The anger that boiled up when I thought about how many people died over this stupid policy was pretty intense. Their callous disregard for the individual members over a long held superstition is unreal and unchristian. It would be one thing to make it a conscious matter and not subject to congregation discipline and just speak in unfavorable terms. It's quite another to make the decision to use blood a disassociating item so basically you don't even get a JC.
To the WT monitors, I know you don't care but if you believe in God, understand you will answer for all those deaths.