I'm not a fan of trying to bring back extinct creatures from the grave without first addressing what's wrong with the world that led to their extinction. It really isn't ethical to start creating creatures just for our entertainment (i.e., keeping them in cages). But reintroduction into the wild is also problematic: either they're now an invasive species, or they're now (still) easy prey.

TL;DR: "your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.”