Even TUC is bashed more now.
TUC is very tied to the ending of the cold war between east and west, and as that recedes more into history the movie makes less sense. To my generation it's a relic of the past, equal to vietnam and korea.
Even a single scene where Admiral Cartwright and the other conspirators explain their motivations and reasoning really would have helped the movie.
Something more than "Gee, I don't trust the Klingons, I hope we never have peace
As things like the cold war recede into history, the more important it is to teach that history and remember it.
It may be seen as less relevant these days, but it's still important to know what happened and why. Those things are a part of all of us, and if we don't learn from the mistakes of previous generations, well, you know the rest ...