Re-dubbing Luke’s line into a question also works marvelously:

https://drive.google.com/file/d/1LpkUB5LmNJ4Sd3xEGWH4UKNBx145tait/view?usp=sharing

It’s truly incredible what technology has allowed us to do.

Now, for context, let me be clear as to what “some things are stronger than blood” means at this point. In original TROS, it is a continuation of what they were just talking about. With the addition of “Final lesson” I’m hoping it’s clear that he’s changing topics. If you look at when he did this in TLJ, he would state the thesis of the lesson he was going to teach her immediately after this line about the lesson. Then, he would proceed explain his reasoning as to why that thesis is true.

So, in this case, he’s changing topics away from Palpatine’s supposed involvement in her conception. Then, the point of his lesson is that having this blood infused with all the power of the Force itself isn’t all its cracked up to be. He uses the example of Leia. She couldn’t even finish her training because she knew there was too much potential darkness inside of her. But Leia knew there would be somebody one day with both that power AND the spirit to overcome that darkness. However we want to word the flashback voiceover I’m fine with, but I’d prefer it to line up with what I’m describing, roughly.