I don't have any problem with it looking more advanced than the Nostromo. I do, however, think it creates a whole lot of continuity problems when compared to what was shown on the "state of the bad-ass art" Sulaco and, obviously, the near-Earth orbiting Gateway Station... Both of which are being depicted several decades after the events of even the Nostromo's encounter (which was, in turn, in the Prometheus' crew's future).
Then again, the very existence of technology able to read dreams sort of throws a spanner into the works of the eventual inquest into whether Ripley's version of events could be believed. Its inclusion didn't serve much of a purpose in 'Prometheus', but it's difficult to imagine why nobody tried using it on her regular traumatic nightmares (or, alternatively, why she didn't insist upon its use, since she clearly had a problem with others not believing her).