They start very slowly making small implications of change-
pp : and gaslighting the hapless "domestics" in the process. example in your quotation:
"The irresistible conclusion therefore is that Jesus referred to the new creation [the anointed] when he said: This generation shall not pass until all these things be fulfilled. This then would be a strong indication that some members of the new creation will be on the earth at the time of Armageddon." Watchtower 1927 Feb 15 p.62 bold added.
pp: Jesus words really mean that armageddon will have passed, be over, when the wt anointed should die. The tribulation will be a greater disaster then the Flood, mentioned in the context, , and it will have passed be history, so Armageddon is part of the tribulation! .so:
the current wt doctrine, preached, via letter, phone or h2h, is a false prophecy, the generation will not die at the onset of the tribulation, but after.
in other words, the second fulfillment idea is totally wrong. because of the above and
can not be the wicked generation, they die at armageddon
can not be The "great crowd of Other Sheep" because they will never "pass away".