Ah, I think you did accidentally end up with a slightly incorrect version, in which they repeat images from the opening to fill the whole song as posted on Spotify and other places. (It's been a while since I saw the show, so I didn't notice.) Your guess is entertainingly wrong haha (it's about time travel, the lyrics of the song are SUPER literal) but yeah 7/10 is pretty close to my opinion on it too, though there are some people who really love this opening.