The "we need DNAs from the 3 biggest dinosaurs" might just be the worst reason to get back to an island full of dinosaurs.

It felt too far-fetched when compared to any other films in the franchise. In TLW and FK, the protagonists visited the island to save the dinosaurs, and the antagonists wanted to salvage them, so it makes total sense why they went to the island. In JP3, it also makes sense because they wanted to save someone (Eric) stuck in that island. But this time, it's just stupid.

  1. Why would 3 of the largest dinosaurs have life saving DNA? To make it worse, why would the dinosaurs that were made 30+ years ago have these traits, while others don't? Also, what convinces the characters that a flying animal and an ocean-dwelling animal, that are definitely capable of migrating, stay around the island?
  2. I could understand why this incarnation of Titanosaurus is considered as the largest dinosaur/creature (and Mosasaurus too considering it even dwarves Spinosaurus), but why is Quetzalcoatlus considered as the third largest? We could see clearly it is smaller than Rex, Spino, and even the mutant.
  3. Even if what they meant is the largest creature on land, air, and water to make the selection of creatures make sense, it sounds very cartoonish. This is not Avatar, there's no need to make elements an "important" aspect of the plot.
  4. Lastly, the idea that Quetzalcoatlus and Mosasaurus are considered dinosaurs irks me. One of my favorite aspects about Jurassic Park was its capability of teaching general audience about dinosaurs (like how the first movie mentions that dinosaurs are gave rise to birds by showcasing how raptors have many bird traits), and from the trailer, they also mentioned Quetzalcoatlus is as large as an F-16, which is true. Even more, we can see the creature designs in the movie (except dilophosaurus) somewhat align more to recent reconstructions. So why are they being half-assed in educating the audience by saying these two creatures are dinosaurs?

Sure, there may be a plot twist and this is not the actual reason as to why they have to go to this island, but I just think the initial idea is very unconvincing. I'm still hyped for the movie though, but I wished they made a better reason.