Bottom line is that the organization known as the Watchtower Bible and Tract Society is absolving itself of culpability in regard to death or injury regarding children vis a vis blood transfusion refusal.
The strategy is to make a kind of formally worded statement to that effect which is so ambiguous only THEY can properly say what it means (from moment to moment).
At a casual reading the statement says you can't decided to become a Member of their religion. Neither an adult nor a child can exercise that option of "joining" a becoming a member in good standing. What this seemingly implies is that ONLY Jehovah "knows" whom he has approved or accepted and that won't be plain to everybody else until the bodies are sorted after Armageddon!
Since you cannot become a member you cannot sue the Watchtower Society for forcing you (as a member) to comply with rules, regulations, rituals, ceremonies, observances or the refraining from medical treatments. Since you are, in effect, ON YOUR OWN; they are innocent of influencing you AS A MEMBER.
Isn't that shitty?