You don't have to go back before the Awake!'s 1970 WTLib cutoff to find embarrasing statements
Search the CD for '1914 generation'
If your digital library goes back further, do the same search. There are several 1960's Awake!s in the early and late 60's that describe the 1914 generation in embarrasing language, e.g. a 1969 article saying that the generation that saw 1914 are nearly 70 years old. I'm sure those articles have been disussed here before today.
If you, or the JW you are talking to, do have access to older literature..... do the same search
Awake! Oct 8 1968, pg 13
Even if we presume that youngsters 15 years of age would be perceptive enough to realize the import of what happened in 1914, it would still make the youngest of “this generation” nearly 70 years old today