User blog comment:Dinosaurus1/Why Maisie freed the dinosaurs (and why it is not as bad as you might think)./@comment-1734776-20190120224711

Maisie was only a piece of the issue. The small population of dinosaurs that escaped Lockwood's estate won't doom the planet, and that was lost on most of the audience. Colin Trevorrow has explicitly said that isn't the issue, and the real issue is the technology getting out to the rest of the world.

But I disagree with 5. Maisie had to have known her decision wasn't a good one or she wouldn't have justified it with any reason. She watched Owen and Claire briefly discuss the issue only for Claire to opt against it, and then she went and did it herself. She knew what would happen. Being a kid isn't an excuse in this case.