I’m not terribly invested in Star Wars, but even as a casual fan I do have to disagree.
There are very big differences between the politics in the prequels and the scene of Darth Vader meeting with the generals. For one thing, one is about a three minute scene in a about a 2 hour movie. The prequels tend to have multiple lengthy political scenes in a row that wind up taking up considerably more time in their respective films.
Secondly, the Vader scene has a point to it. It shows us how the Empire is reacting to the Rebel Alliance, it shows their overconfidence in the Death Star, and most importantly it develops Vader as a terrifying presence and demonstrates his superiority to the regular Imperials through action. Nearly all of the dialogue in that scene pertains to the rest of the movie; the Imperials in that scene talk a lot about the Death Star plans and the possibility and/or futility of a Rebel attack on the Death Star, which is the entire climax of the film.
A lot of the political scenes in the prequels, however, do not service the actual film. Do they do some good world-building by referencing outside events and factions? Sure, you can give them that. But aside from when the Jedi council are planning missions or Palpatine is proclaiming himself Emperor, I don’t recall any of those political scenes actually informing the rest of the movie. They rarely set anything up that’s important later in the film, they rarely establish a character’s personality or status a la Vader, and they certainly aren’t short enough or spread out enough that general audiences won’t get bored.
In short, the Vader scene actively forwards the plot and gives the audience new, pertinent information (what is the Empire plotting against our heroes?). The prequel politics usually don’t, and they definitely aren’t paced well enough to keep attention.
But regardless, I find this video pretty informative on the prevalence of politics in Star Wars in general:
The Clone Wars is a different story. The episodes are short enough that even if a few are primarily political, they aren’t taking up much time. It’s also, at least early on, an anthology series. You aren’t obliged to watch any of the politics-central episodes.
And I’d also argue, since they are better written, they’re paced well and do a better job of being relevant to the story than the prequel films.
