Well, it could very well be that there was an innocent error in the calculations. It could be explained that 1914 was just a typo and that the number was transposed. The real date is 1941, when the USA entered WWII. THAT was the end of the Gentile times.
So from 1941 until now, we are now 69 years into the last days of this generation.
Doesn't that work ?
Rub a Dub