Brian, thank you for being in that room. Represent. I happen to think this film was shades of The Phantom Menace ten years later, and I feel ironically like Simon Pegg telling Jar Jar fans that they're watching "a jumped-up fireworks display of a toy advert."
Star Trek was created to be the opposite of Flash Gordon, which is specifically why they chose not to have rocket exhaust come out the back of the ship. It was an attempt to bring hard sci-fi to prime time television, stories that probed the limits of what science could imagine while simultaneously being metaphors about our own world. It was a show about exploring the frontiers of space, of our knowledge and of our beliefs, and if that didn't fill the seats, there were usually hot girls in loose outfits that needed rescuing.
The three main characters represented different basic viewpoints, so each situation would challenge at least one of those. They'd make fun of that guy the whole time, so at the end he could get one good one in before the credits.
Here, nobody seems to believe anything. We have a villain who's irredeemably bad for reasons they had to come up with in post, a story that seemed to have no point except to set up a franchise and a series of action scenes for the mere sake of action. "Nothing's blown up for a few minutes. Let's have Scotty get stuck in some tubes or people are gonna fall asleep." Where were the oompa loompas in that scene?
I heard there used to be an edict from Roddenberry in the writers room, that the Enterprise would never succeed by sheer strength or violence. Kirk ran around punching guys all the time, but in the end, he saved the day by understanding something about his adversary, or by learning the rules of the situation and figuring out how to manipulate them to the best result. When he fought the Gorn on Vasquez rocks and built a cannon out of bamboo, that wasn't the victory of the story. He could have killed the Gorn captain, but he didn't. He overcame his violent instincts, impressing the god-like race that had forced them to fight for some reason… Whatever. Say what you want about that cheesiness, but old Star Trek seemed to be about something.
This movie hired the guys who had two movies to explain what the evil transformers were even mad about, and they never even tried.
True, with the hundreds if not thousands of writers who've worked on the franchise over the years, the continuity has gotten so complicated, they should have thrown all that out, but the whole alternate timeline thing is like asking for fanboys to find the inconstancies. They should have started over like Battlestar Galactica, not some bizarre "crisis of infinite Earths" that makes things even more confusing than they were before.
The original concept is simple. Every week, Kirk gave it to us in about 45 seconds. They should have cast new actors in the parts, put them in the Enterprise deep in space and given them compelling conflict to resolve in ways that reveal and develop character. For bonus points, they might uphold ANY philosophical ideals. Once they have that, with all their money, they could still include all the striking visuals they had here and have ILM throw in a bunch of explosions to bring in that Transformers bank. There's your appealing to both demographics.