If you go to a steak house and get served a vegan steak option, are you going to be happy? Even if it's a delightful experience, you're still going to be upset that you were given something you didn't order. That's Star Trek with Quentin Tarantino. Tarantino has made some fine moves, but he has a specific taste. He's not for everyone and shouldn't handle a property about optimism, inclusivity, and the future.
Yet, someone thought it was a good idea to offer him the opportunity to write and direct a Star Trek film, a Star Trek film that thankfully never happened. Speaking to Collider (via TrekMovie.com) writer Mark L. Smith revealed the type of content that he and Tarantino had been working on, and while some will think it's neat because it's not what Star Trek actually is, that very reason is why we're glad this abomination never got made.
Smith told the outlet;
“I think his vision was just to go hard. It was a hard R. It was going to be some Pulp Fiction violence. Not a lot of the language, we saved a couple things for just special characters to kind of drop that into the Star Trek world, but it was just really the edginess and the kind of that Tarantino flair, man, that he was bringing to it. It would have been cool.”
Some will want a bloody, violent, and hard-rated Star Trek film. That's like asking for bloody horror in a kid's film, however. Some genres and some franchises do not work beyond its scope. For Star Trek, being ultra-violent, swearing, using blood and sex, and being rather bleek is not what people want.
The novelty will get people to see such a film, sure, but it'll be torn apart by your core franchise, the same people who are keeping Paramount+ alive. Going so far against what Star Trek is and has always been would just leave a sour taste in everyone's mouth and may kill the franchise.
Tarantino can make a good film, sure, but he couldn't make a good Star Trek film and we're gratetful every day that his project never came to fruition.