I don’t really feel that line works, it comes off as clunky exposition, why would she feel the need to explain what she’s doing at that moment? And more importantly, they’re trying to stay quiet and make no sudden moves, so it makes no sense for her to randomly yell about what she’s about to do, that would probably startle the beast and make it attack.

I feel it’s pretty obvious she learned that from studying the Jedi texts, it’s all she’s been doing in between the movies, she doesn’t really need to say it, and if she does she definitely shouldn’t say it at that moment.