Personally I don’t like the idea of name dropping Mustafar in the crawl, it has like a minute of screen time and is done with. The crawl should be setting up things for the movie as a whole. Plus it might be confusing considering it doesn’t look like Mustafar.
The reason Mustafar is a hellish volcanic planet is due to the effects of a powerful artefact. Supposedly able to bring back the dead, the power of the artefact transformed mustafar into how we see it in Revenge of the Sith/Rogue One. Some time before the Battle of Yavin the artefact is destroyed and the planet is then able to heal. This is why it has changed when we see it again 30+ years later.