IIRC the book was better in that regard: there the poacher team were just like a pair of random dipshits who wanted to sell a baby T. Rex and get rich quick and the research expedition was some trust fund baby paleontologist's ill-advised pet project. Like a lot of the same pieces are there, but they actually fit together in a way that makes sense instead of what genuinely seems like a bunch of changes to make even more things to sell as toys.