There's no shortage of irony in how they had to go back to "toying" with Mt. 24:36 when the time came to extinguish the old light concerning the generation:
5 After prophesying events leading up to a time of "great tribulation," Jesus added: "Concerning that day and hour nobody knows, neither the angels of the heavens nor the Son, but only the Father." (Matthew 24:3-36; Mark 13:3-32) We do not need to know the exact timing of events. Rather, our focus must be on being watchful, cultivating strong faith, and keeping busy in Jehovah?s service?not on calculating a date. Jesus concluded his great prophecy by saying: "Keep looking, keep awake, for you do not know when the appointed time is. . . . Keep on the watch . . . What I say to you I say to all, Keep on the watch." (Mark 13:33-37) Danger lurks in the shadows of today?s world. We must keep awake!?Romans 13:11-13.6
Not only must we pay attention to the inspired prophecies concerning these final days of a wicked system but we must anchor our faith primarily on the precious sacrifice of Christ Jesus and God?s marvelous promises based thereon. (Hebrews 6:17-19; 9:14; 1 Peter 1:18, 19; 2 Peter 1:16-19) Eager to see the end of this evil system, Jehovah?s people have at times speculated about the time when the "great tribulation" would break out, even tying this to calculations of what is the lifetime of a generation since 1914. However, we "bring a heart of wisdom in," not by speculating about how many years or days make up a generation, but by thinking about how we "count our days" in bringing joyful praise to Jehovah. (Psalm 90:12) Rather than provide a rule for measuring time, the term "generation" as used by Jesus refers principally to contemporary people of a certain historical period, with their identifying characteristics.
Another gem from the same article:
9 When Christ?s Kingdom rule began in 1914, Satan was hurled down to earth. This has meant "woe for the earth . . . because the Devil has come down to you, having great anger, knowing he has a short period of time." (Revelation 12:12) That time is short, indeed, compared with the thousands of years of Satan?s rulership. The Kingdom is at hand, and so is Jehovah?s day and hour for executing judgment on this wicked generation!?Proverbs 3:25; 10:24, 25.
Could they have left the door open any wider? Hundreds of years could be considered short compared to thousands! How are statements like this supposed to instill a sense of urgency in the R&F? Better throw in the standard red herring:
15 Does our more precise viewpoint on "this generation" mean that Armageddon is further away than we had thought? Not at all! Though we at no time have known the "day and hour," Jehovah God has always known it, and he does not change.