I’m probably overanalyzing it, but my thinking is:
ROTS emphasizes that she is okay despite passing out (Obi-Wan even kneels to check on her) specifically so that the reason for her death can be due to emotional anguish, which is made explicit later.

In LOE, it is again emphasized that she’s fine, and she goes on to survive the movie, with the robots telling us that she was badly injured. We need to infer she will die eventually from what happened, with no textual reason to believe it will be due solely to long-form emotional anguish. I actually think the bone cracking is helpful in any fan edit, both Boleyn or regular (removing the ‘lost the will to live’ and even ‘we don’t know why’ lines).

I did tone down the effect, removed high frequencies, and moved it to after she speaks. If you weren’t watching the edit on a good sound setup and paying attention it would be easy to miss, but it’s there.