Yeah, maybe in that scene Vader is thinking to himself "geez, I had one of them right in front of me!"
So far, the best thing about this new trilogy has been the info that gives us a glimpse into Vader's thoughts. I'm sure that's part of the point, but still.
I had always wondered what might be going through Vader's mind when he watches Luke get zapped. With these movies, I have several ideas. Its great discussing these things and not fearing the nerd label.
🤓