It’s a really unfair barometer. I don’t remember the score for Alien off the top of my head but I’d never just assume that it’s bad because I don’t remember it. I could say the same about most of the movies I’ve seen, honestly.
Memorable and motivational are not the same thing. The music in Star Wars really gets you pumped. The music in Alien is a mixture of different atmospheres, both relaxed and disturbing. They’re supposed to be complimentary. A swashbuckling adventure and a tale of unknown dread. That bit where the A L I … appears is amazing. The fanfare as the fighters go into the trench run is amazing. But it’s a different amazing. Did Solo have either of those moments? I don’t remember any.