I have a “certain resource” that I’ve been using to brainstorm editing suggestions, to make sure they could work. Because of that, here’s how the scene would play out if the two lines I mentioned were removed:

Rey: “I saw myself on the dark throne. I won’t let it happen. I’m never leaving this place, I’m doing what you did.”

Luke: “I was wrong. It was fear that kept me here. What are you most afraid of?”

Rey: “Myself.”

Luke: “Leia knew it too.”

Rey: “She didn’t tell me. She still trained me.”

Luke: “Because she saw your spirit. Your heart. Confronting fear is the destiny of a Jedi. Your destiny. If you don’t face Palpatine, it will mean the end of the Jedi, and the war will be lost. There’s something my sister would want you to have.”

I personally think it could work. Rey’s “She didn’t tell me” line is kind of suspicious, but the implications probably wouldn’t register for a hypothetical first time viewer.