It would be an interesting angle if Leia’s decision was portrayed as a failure, but this is supposed to be a hopeful scene, “Leia failed the galaxy and doomed us all by choosing a career in politics” doesn’t fit a scene that is supposed to restore Rey’s spirit. To be fair neither does a premonition of death but that’s why we removed that bit.>
I really don’t see it that way. She chose the path she honestly thought it was the best for her and for everyone. Her mother’s path. And she spent some three decades fighting her good fight, I’m sure she made tremendous good for countless lives around the galaxy while being a politician.
In the end, because of circumstances completely out of her control, things got out of hand. How does that make her a failure in any way, shape or form?
Also, this is NOT being implied by the AI, this IS the canon, she DID chose to be a politician instead of a jedi. AI would be merely trying to make a better sense out of it. I think changing that would be beyond aggressive fan-fiction, and that’s quite NOT what Hal9000’s edits are all about.