It is awfully muddled, isn’t it?
That’s one of the things I’ve noticed over the past decade or so - their “continuity checks” seem to be lacking. I’ve seen contradictions not just a few weeks or months apart, but even in the same magazine.
Anyways, my best guess would be something like this:
Old Light: when JWs give their “hailstone message”, it’s going to be a sort of “ha ha, God’s gonna get you suckas, you’re doomed doomed DOOMED and there’s nothing you can do about it.”
New Light: when Jaws give their “hailstone message”, some people might be shocked into repentance and they can join at the last minute, “Ha ha suckas, you’re DOOMED but if you act in the next 15 minutes and decide to join our side, God might let you. Clock’s ticking.”