PO’s do have a bearing on conclusions drawn. However! Subject matter being considered is “the trouble, with Atheism”

That would seem to limit the choice of textbooks!
To include every subject other then scientific vs. religious textbooks requires another thread.

Too, your assessment concerning the encyclopedias data, as conclusive is just YO.
It is MO that, errors will occur, from drawing conclusions of erroneous factoids ITFP!

Yes, to your questions, and also, NO!
Britannica is revised, and rewritten.

PO’s are relevant to this thread, and certainly they have no substance!
IMO