Theyre not direwolves though. They contain what the researchers think is direwolf genes sampled from bones, but they just spliced these genes into grey wolf DNA and stuffed it into some surrogate dogs. It's effectively a new species, but it's no different to selective breeding but more expensive.
Not to mention these animals can't exist in the wild. They'd effectively be inbred to fuck immediately and wolves are already struggling to survive due to human predation (especially of prey species) and habitat loss. A bigger, slower, more inbred wolf is going to immediately eat shit.
This is a Theranos meme stock waiting to explode. The premise is nothing but a ponzi scheme designed to fund some unethical animal testing for some shitty zoo exhibits. The scientists behind this would rightfully be fed to their own subjects in a rational world.