The closest explanation we get is in the novelisation; Kylo can sense where she’s planning to go through the Dyad.
That’s kind of what I was thinking when I suggested cutting the “necklace tracking” scene. I’d rather handwave something away, than over-explain it to the point of ridiculousness. (Not that I’m trying to reopen a past debate, just citing an example.)
I guess my thinking is: Every Star Wars movie is filled with lines that are utterly stupid on close inspection. That’s part of the deal; I get it. But if we’re recutting the movie anyway, and it doesn’t hurt anything to remove them (e.g. Lando’s transmission from Leia, again, just an example), then I probably lean in favor of it.
If the removal actually helps to make the film better, such as this line about Babu “What The” Frik, or the line about 3PO reading the Wayfinder location from the Dagger, then I’m all for the change.