WTC is an end-times religion. Everything they do, teach, believe, must somehow dovetail into the end-times eschatology that characterizes them. If 1914 went away, they would have to replace it with something else. Timing the end is 2nd nature to JWs, even though they have a 100% record - OF GETTING IT WRONG.
However, they really painted themselves into a corner on 1914. It would not be sufficient to simply stop mentioning it because there are so many people reminding them - it is a millstone around their neck.
Suffice it to say that they have a hot mess to handle along with all their other problems like CSA, loss of religious status in other countries, investigations into to shunning, selling KHs without proper legal proceedings, and on and on and on and on…
As for 1914, it just won’t go away. It reminds me of the meatloaf at Bethel (“repeatloaf”). It makes for endless obnoxious belches that can’t be hidden.