You ask some valid questions AW916 ,and no doubt JW`s will give you an answer though maybe not one that satisfies ( they do have answers for everything even if their not relevant to the question asked ) They are also masters at deflecting questions which prove embarrassing for them to answer .You need to be very attune to staying on the question you ask and not to be sidelined by their trying to deflect that question away.
Getting back to your OP ,no I havent read that book but will endeavour to do so .
Thank you
and take care.