So, Hal makes an excellent point that Rey’s arc isn’t about shame, but Luke’s in TLJ was. Why the filmmakers are trying to shmoosh together two different themes as if they’re identical is beyond me. Could we maybe rework the dialogue from:

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

To:

“It was shame that kept me here. But you…you’re afraid. What are you afraid of?”

We could avoid ret-conning Luke into a coward in the last movie (something Rian deliberately tried to avoid), and we also highlight how Rey is being a dumb-dumb for coming here.

I also did some digging into those other proposed line changes: “I will earn your family’s saber,” and “Leia sensed the birth of her son”; but I couldn’t find any viable clips. Rey only says “family” the one time I believe - to BB-8 in TFA, and her vocal quality there doesn’t match the TROS line at all. And I can’t find Luke saying “birth” anywhere in the trilogy.

Unless someone can think of an alternate source for those words, or a different solution to the lines, we may have to pass on those.