Eh. I'd probably have to sit and rewatch JW to comment on it in more detail, but of the things I remember that I thought were bad or handled terribly, the final set piece felt cheesy and not "cool" like I assume was intended (there is a long shot that pans around the dinosaurs as they fight which is just goofy), but a lot of it was the script rather than the kind of flat and mediocre direction of the material. The character interactions are wooden, some are severely underwritten, and lots of convenience of convenience plotting. The thing that still bothers me is that segment where the kids fix the car on their own with clunky "REMEMBER WHEN WE SPENT THAT SUMMER FIXING THE CAR WE CAN DO IT NOW IN ONLY AN HOUR!" right after they do a nostalgic field trip through the first film's iconography that deadens the pace of the movie like the tacked on Avengers stuff in a lot of the early Marvel movies (Iron Man 2 in particular). And, when the film was in production and the story beats came out, I felt like I was the only one excited for it because the idea of the park working so well that people got bored and needed a new super dinosaur was so stupid that it could have been amazing.
Right, I'm not saying that writing was necessarily
good but it was consistent inside the movie's own narrative. Her nephews are plucky and smarter than they give off, so they do the scrappy thing and fix the car. It's not believable in the real world, but it's true enough in the movie.
In this movie, we've got:
1) A kid who is a commando sleuthing around secret labs, who then runs screaming and crying to her bed, then calmly leads Chris Pratt across ledges 4 stories up in a storm. (Maisie)
2) A master hunter who seems to be one move ahead of the main characters until he decides to get in the cage with a dinosaur he's never seen before after shooting it with his best guess at tranquilizers. (Tooth-Fetishist)
3) A bad guy who was clever enough to steal millions, if not billions, from his employer but not so clever as to put his secret lab/auction house anywhere but the basement of the employer he's robbing. (Mills(?))
4) An animal-loving tracker who argues against callously using animals as tools callously using animals as tools. (Owen)
Like, that's 8ish characters who would be fine on their own, but they smashed them into 4 people (and that's just off the top of my head). I'd argue in JW that most of the characters act in ways that make sense for the characters they are (the exception being Vincent D'Onofrio, the super smart tactician who didn't bother to check for raptors when he was just hanging around). This movie felt so strange to me to watch; in the 3rd act, I felt like I couldn't guess the motivation for anyone on screen except maybe Claire.
edit: Also, what's up with the shadowy faction(s)? JW seemed to be leading to actual militaries wanting the dinosaurs, but this movie's weird auction was more of a mob boss looking affair. And why is BD Wong making all the killer dinosaurs if he thinks they're dangerous and doesn't want people to make them? He doesn't seem to be held hostage, and in fact orders people around a fair bit. In JW he was fine with what he was doing (mocking the CEO for being shocked by the I. Rex), but here, he's all pissy about some people buying his raptor?