The WT put themselves in a bind on this. I think the WT says 100 years of kingdom rule?
It should have said 100 years of Jesus presence lol.
For anybody interested in exactly how this doctrine really developed, it began when Rutherford took over. Russell taught that people could get holy spirit and instruction from that. Rutherford taught that sometime between 1914 and 1918 Jesus returned, and when he returned holy spirit was no longer needed because Jesus would direct everything. That Jesus chose the WT, and by effect, Rutherford himself to dispense his orders. That's why early magazines about pioneer hours claim that if those weren't directly from the lord, they wouldn't be on there, but the lord picked those numbers of hours. Rutherford taught the holy spriit was gone and salvation was by obeying Jesus's commands through those he picked to carry out his orders. Rutherford also taught that it was nobodies business how Jesus issued those orders but it could include using angels and even the dead bro. russell to transmit information. When Rutherford died, it was between 10 and 20 years later that knorr reintroduced 'holy spirit' to be a force that was being used to direct. However, convieniently, the holy spirit didn't return freely to everybody in the world allowing anybody to understand the bible, but was limited to only Knorr and the so called governing body. So they did away with Rutherfords doctrine of holy spirit being gone since Jesus return, but then taught that nobody except them could get it, so people still had to obey them.