This was my initial thought as well right after I saw the movie. The Mustafar thing feels so fast, that it might be better to just say Kylo found one Wayfinder before the movie started, and we start by panning down to that red nebula.

The way it is now, the Mustafar scene just feels incomplete. We transition to the next planet before we even know where we are, and it breaks the rule of following the ship to the first scene. We just get the planet establishing shot and then hard cut to the planet surface.