The idea was the crackling followed by two simple words is a bread crumb that I think a strong force user could pick up, but so short for the audience it (hopefully) gives you a “wait, was that? No can’t be. Can it?”
I don’t know if the scene actually works as intended, but that’s the idea at least! It’s hard to know how I would’ve reacted seeing it for the first time.
Even if there are not any changes to it, it works GREAT with Hal’s The Rise of Skywalker: Ascendant edit.
Here is his crawl
Episode IX
THE RISE OF SKYWALKER
Flames of rebellion burn across the galaxy. The tyrannical First Order has retaliated by attacking any planetary system that supports their enemy.
As Rey, sole heir to the Jedi, continues her training, General Leia Organa sends her brave agents across the stars to unite the disparate worlds in the name of Resistance.
Meanwhile, Supreme Leader Kylo Ren has traveled to Mustafar, chasing whispers of a hidden power that would allow him to destroy any threat to his rule…