It's interesting that TWOK uniform variant survived the longest, all the way to the mid 24th century at least judging from 'Tapestry' and 'Yesterday's Enterprise' (granted without the turtleneck). The jacket didn't seem to hard to put on. Just a snap to close it basically.
A double-breasted jacket like that seems a bit heavy for everyday duty wear, especially with another layer or two underneath it. And it's just too dressy-looking to be plausible as fatigues. It was designed to look impressive onscreen rather than to be practical, functional clothing. TNG got its modification backward -- they should've kept the turtleneck and ditched the jacket, not the other way around.
I guess I interpreted some of Meyer's statements a little differently. I remember him saying something about if he had created Star Trek from the get go it would have looked a lot different. But he didn't and this was the universe he had to work it.
What's your point? TMP was in the same universe as TOS (theoretically), but its designers still reinvented everything from scratch while being true to the basic design elements laid down in TOS, like the saucer-and-nacelles ship design, the arrowhead insignia, the circular bridge, etc. If they'd had the budget, TWOK's makers could've done the same. The only reason they kept specific hardware and stock footage from TMP (as opposed to the more general design precedents established in TOS) was because it was cheaper to reuse stuff. It wasn't out of any desire to directly reference TMP, a movie they implicitly pretended had never happened.
TUC mostly used redresses of the TNG
Enterprise sets to save money. After all, the TNG sets were a modification of the sets built for TMP in the first place and reused for TWOK and TSFS, so they were the only sets available.
Besides, by the time of TUC, the look of the Trek movies had been firmly laid down by five previous films and by TNG. By then, it wasn't unique to TMP anymore.
I also based that on the fact that he kept the production designer in both cases from the previous film, Jennings and Zimmerman. He probably could have picked a totally different designer but decided to retain them. That sort of told me that we wasn't interested in a more radical change.
That could also have been a budgetary/practical decision -- if your tight budget and schedule require you to keep the sets, it makes sense to keep the people who are most familiar with the sets and most qualified to modify and supplement them.