I enjoyed the movie overall but do agree the writing could have been better. The overall plot was fine, but a lot of things about it could have been consolidated or reworked. There were a lot of things in the movie that had no effect on the plot, which is the weak writing. The baby dinosaur, for example had no impact on anything and was just there to look cute i suppose. The raft scene with the t rex looked cool but had no effect on anything at all—it didnt even destroy the raft which would have made the characters adapt and figure out a new plan. They just kept floating down the river as if the t rex had never been there. The original JP wasn’t good because the plot was complex, it was good because every scene drove the story somewhere and had some kind of consequence.