M.J., when I would point these sorts of things out to my family I would get the they are human etc. arguement to which I would respond, yes, that's fine, all well and good. But here's the rub, at the time those beliefs were held as absolute, and if you did not believe them you were either an unbeliever or an apostate. They were not presented as ideas that you could either accept or reject, they were presented as absolute truth. That seems to be the big thing that JW's never get when examples of past follies are brought up.
If they said, ok, two core beliefs, love God, love your neighbor, and all this other stuff is interesting conjecture but you don't have to believe it under penalty of death, fine, I'd have no problem with that. But the WBTS has paraded this stuff as absolute Truth which non-belief caused severe sanctions. That's the problem IMO.