Years (many decades) ago, most JWs knew what their religion taught. They could go toe to toe with a minister or priest and make some good points.
I believe today's Witness knows little about most of the convoluted teachings and revisions of the "Truth".
Yesteryear's Witnesses got a 9/10. today's JWs get a 5. The average Witness can't understand what's acceptable regarding blood, military service, conscience matters, disassociation, various parables, etc. Today's JW is dumbed down and sorry to say: dumb.