The other glaringly obvious flaw is that because they keep reinventing themselves and applying revisionist history techniques to what has gone before, this is not by a long chalk the same religion that it was in 1919 CE.
Even if someone genuinely believed that God chose them in 1919 - the teachings of that generation have all been consigned to the dustbin, and replaced with an entirety new set of beliefs.
If you were asked in a general knowledge quiz "when did the Jehovah's witnesses religion begin?" you might be expected to say sometime in the 1930's whereas the real answer should be - whenever they revised what their R+F have to believe. Which might be around a month ago, for all I know!
I really don't know how the PIMI can keep abreast of all the changes...