I used to be a moderator on TrekBBS during the early years of the board. And one of my co-mods, who'd seen "In a Mirror Darkly" told me that he thought the Defiant looked outdated and out-of-place next to the NX-01, then followed with a "Sorry!" because he knew I'm a big TOS Fan and he didn't want to offend me. I told him I wasn't offended. As much as I love the show, the production values of TOS didn't age as well as TNG's. And it's fair to say that now because TNG is now as old as TOS was when ENT was on.
TOS have aged a
lot and I'd say so has TNG's by now. Those LCARS reaaaaally don't move much.
I mean, ok, you can't expect them to extrapolate or guess what technology was coming, and
all of television did this. The Jerry Anderson puppet series of the 60s also had these quaint, chunky controls that still looked fab for their time and clever. They're positively twee by now.
Bare in mind as well, 1965 was when the first touch screen was invented by the RAF and kept somewhat under wraps before seeing widespread adoption at air traffic control... in the 90s.
Even the Elograph which saw far wider appeal and adoption wouldn't really take off until the 1980s personal computer revolution and even then, it was awful.
I remember playing with the technology in the 90s and it was
utterly crap. One of the fun things watching TNG knowing they based it off this tech is that, eventually, Data or Geordi should be practically punching the screens to get the stupid things to work.
Another one is the sheer quaintness of the PADD. The computers on ships and star bases had literal gigaquads of memory space, but a personal data pad seemingly couldn't hold more than one or two equivalents of the rich text file.
Yet in 2023, I can beam any of that information from my phone and receive hundreds of files to it. Realistically by the 23rd/24th century you'd be issued with a single PADD you'd be expected to keep on your person at all times as part of your uniform and day to day service.
In some ways, the way the franchise can actively date itself is part of its appeal, it's a fascinating window of a decade thinking what several hundred years into the future would look like and is often
hilariously superceeded within the decade or two.