Star Trek is under no obligation to copy Star Wars, which came along over a decade later. Don't forget, Star Trek completely and utterly reinvented its look in 1979, so it's disingenuous to pretend there's something wrong with it doing it again. Star Wars has always been a franchise defined by nostalgia and homage to the past, so of course its modern productions now homage the franchise's own past. But Star Trek has always been defined by innovation and looking forward, so its aesthetics advance with the era.
TMP was set 10 years later. So of course it was updated. Star Wars had an updated look in the sequel trilogy. If you look at Star Treks tech lineage after adding Discovery and Picard in there its a complete mess. How do they go from Holo communication in Discovery to none in TOS and TNG to its beginnings in DS9??? Is it that hard for the producers to get these things right??? It should not be. Than they get hurled 1000 years into the future and the tech is still what it was "new pre" TOS and Picard...lmao....its ridiculous. Again i get the all shows have a specific look. But they at least tried. Enterprise does not look more advanced than TOS. Sure the sets are of better quality but that's pretty much it. They have a very industrial cold setting. I still remember the outrage of so many here and elsewhere online about Ents look. Haha. Yet today not so much with discovery....????
I also remember when Voyagers final ep with future janeway and her new future shielding. Many complained about the tech getting too "magical " wth??? No one sees that with doscovery???lol