I should probably post this in that other thread, but since it was brought up here, I can see dinosaurs being enough to link to the past. There are several comments in the movie about how bringing dinosaurs to life is a problem because they don’t know anything about the world they’re in, and the scientists don’t know anything about the species they’re bringing back. Ellie says about a plant that the JP scientists used it because it was pretty, but that it’s also very toxic and that these creatures (plants and dinos) will strike out violently if necessary (some heavy paraphrasing there).
But there are also hints throughout the movie that the main problem being addressed isn’t the danger posed by the dinosaurs (although that is the most in-your-face problem in the movie), but the hubris of the scientists. They were so concerned with whether or not they could, they didn’t stop to think if they should. God creates dinosaurs, God destroys dinosaurs, God creates man, man destroys God, man creates dinosaurs. These suggest that the problem isn’t the dinosaurs themselves, but that the scientists were creating them in the first place, abusing science. This would have also been the problem if, instead of dinosaurs, they had created some new species that it was thought would exist in the future.
But a lot of those are probably Signposts rather than concerns.
To bring this post back around to the original topic, @VIlle, I think you make a great point that just saying “dinosaurs are brought back to life” isn’t enough. You need to be clear about why the dinosaurs are the problem.