The greatest trick the Governing Body has pulled off is getting you to think that questioning them is questioning Jehovah.
Look at that chart on how many times the term "generation" has changed and ask yourself, with all thats riding on it, can they be trusted? There is such a thing as incompetence. Some dictionaries define incompetence as "The Governing Body's attempt to define the word generation".]
Not just incompetent, but irresponsible. They did have another option, another opportunity.
They could have said "You know, by now it is clear, we got the whole damn thing wrong. 1914 was just a big coincidence where WWI started. Thats it. We don't know what a generation is as a religion, as illustrated by the fact we have changed it 4 times in 100 years. We also knows this means that Jesus didn't pick us, which is good, because we really aren't the true religion, a restoration of 1st century Christianity as we like to claim."
No. There is only one reason for them to invest in parsing words, to keep their authority and their flock. Too bad for the flock. Lets hope they notice.