Yep. This sort of thing is very common in science fiction.
The author of this article says that Palpatine came back without any explanation, yet he cast Ben into a pit saying he was doing to Ben the same thing that was done to him. And like him, Ben was not killed, but came back. We don’t need to know every single little detail that allowed someone to escape certain peril in a movie if their character no longer matters in that particular movie.
IOW, regarding the article, “Me thinks the woman doth protest too much.”
I’m no fan of a lot of the Star Wars movies, but this one hit a home run. Even Rey taking on the Skywalker name at the end brought tears to my eyes - and I saw it coming a mile away.
I’ve not “cared about” a character in a star wars movie for a very long time. I forgot what it was like.