I simultaneously agree and disagree. While I prefer the TMP model, I don’t feel TWOK itself dumbed anything down — it’s a pretty smart script, Roddenberry’s opinion notwithstanding.
Hm -- I find it an extremely stupid script. So much about it is just dumb. The
Reliant crew not being able to count how many planets are in a system, or to tell the orbital parameters of two planets apart. (The writers of the recent
Khan podcast, my friends David Mack & Kirsten Beyer, came up with a remarkably clever and plausible fix for this, but in the movie itself it's complete nonsense.) The idea that Starfleet somehow had no knowledge of the
Botany Bay's presence even though "Space Seed" made it explicit that Khan's hearing was being documeted for the official record. Khan's crew somehow consisting of a bunch of blond twenty-somethings even though they'd been a multiethnic crew of adults fifteen years earlier. A simulator having live explosions going off. The absurdity of the Genesis technology, and how a device programmed to merely transform the surface layer of an existing planetoid was somehow able to create an entire planet from nebular gas, and possibly even a star. Scotty melodramatically carrying Peter Preston to the bridge instead of calling sickbay to send a medical team to engineering. Kirk saying he'd never faced death, forgetting Gary Mitchell, Sam & Aurelan Kirk, Edith Keeler, Miramanee, and his unborn child, not to mention dozens of crewmembers under his command. And so on.
I'm also not a fan of how it takes the nuanced antagonist that Khan was in "Space Seed" and reduces him to a melodramatic revenge-obsessed madman. Of all the Khan stories, TWOK is the one that portrays him the least intelligently and the least interestingly.
Ironically, I thought the main space battle in Insurrection was quite well done, but then the pacing in general was one of the better aspects of a middle-of-the-road film.
Maybe as a set piece, if you like that sort of thing, but it felt arbitrarily tacked on to a story that was more a thoughtful, low-key TNG-style exploration of ideas, but still had to be forced into the battle-driven action movie mode because that's what Trek movies have been expected to be since 1982 (with TVH being the only one that managed to avoid it).