I don’t know, nobody flying to Exegol seems particularly stressed by doing so. The “difficulty” is completely no-sold by the actors in the various cockpits, and is made apparent solely through visual noise and VFX filler substituting for storytelling.
That’s not really what I meant, the literal difficulty of flying through the nebula and all that is not that important. But what is important is properly conveying how far flung the place is, which is lost if you start the movie with Kylo already there, and yet it takes our heroes an hour and a half to reach it.