So, what they are saying is that even disfellowshiped JWs can't receive blood if their JW mom's conscience/religion doesn't allow it. Woman was probably trying to be reinstated and mom was busy bullying her so that she wouldn't take blood AGAIN and lose hope of reinstatement. Which is proof that blood did save her life before, that JWs do DF for taking it.
You know what's sad? JW gramma will raise the other kids while defaming their mom for accepting blood when it was too late to save her. She died and will not even be mourned.