Here is a screencap from the Tv-Spot Trailer regraded to have more natural colors.
The upper is at it originally appears (in the movie).
The lower is re-graded to represent a more natural color-palette.
Notice how it clearly enhances the artificial look of the cgi-made dinosaurs.
There you have it, the color-grading tint and the hazy look, is primarily there to mask the bad cgi. Yes, BAD cgi, because look at it!
It makes the image look like one of those Dinosaur documentaries from the nineties.
And this is a BAD thing, because there is no excuse to sacrifice solid visuals to just have another movie, because it forcefully MUST show things which are hard to project naturally, at all costs.
Here we are talking about the godfather that practically invented cgi-graphics.
Decide which one you like better.
