That's an interesting point, Leolaia. The great crowd is supposed to survive Armageddon without ever dying, but eventually all those people Rutherford identified in 1935 are all going to be dead, long after Rutherford made all of those without a "heavenly hope" stand up during a convention talk, pointed to them and made the famous announcement "Look, the great crowd!" They're all going to be dead and not one of them will have formed part of the great crowd that enters the new system without ever dying. What an embarrassment!
But, as with many other JW mistakes in pronouncements of doctrine and prophecy, this point will be buried in the graveyard of history. Those who ask about it will be dismissed. JWs will point to new light and a readjustment of the flock. The gaff will be irrelevant to them.
This reminds me of a story Ray Franz shared in Crisis of Conscience. Ray remembered an assembly when he was a young man where Rutherford made the kids in attendance sit right in front of the platform. The WT was releasing a book for kids (I think the book was entitled "Children"). If I remember correctly, in that talk Rutherford stressed that they should not try to seek to get married because the end was really near. They should instead devote themselves to the kingdom work. Ray followed that advice for many years until the society stopped emphasizing celibacy many years later. Ray Franz is now an old man in his 80s. Any of the kids who might have followed Rutherford's advice are now elderly men. But this too has been forgotten by today's JWs. If this point is brought up to any current JW, it will be dismissed as irrelevant. It has been superseded by new light, so who cares. Rutherford's great crowd identification gaffe will likewise become a distant, irrelevant memory.
The FDS is God's channel. We can't think for ourselves because we're flawed humans. Our thoughts are easily corrupted. We must follow the dictates of the FDS regardless of how illogical they may seem to us. Remember, we're imperfect, but they're directed by God. As Abraham followed God's instructions up to the point of nearly sacrificing his own son, we too shall follow the FDS regardless of how illogical their mandates may be.
As long as this attitude persists among JWs, none of the holes in JW doctrines will matter to current JWs.