Yeah. It's also more propaganda than fact. Some short-term effects are known, but the causes are very much in dispute.
In the USA, our national parks have been politicized to an outrageous degree. There have been many changes, few of them good for the overall community, or the country, or even for precious "mother nature" in the long term.
There was an excellent rebuttal of that guy's TED talk, IIRC. Haven't found it yet, but here's a start
Full disclosure: I'm actually for
more wolves but have no silly notions about how harmless they are. I also had a wolf-dog hybrid for 13 years and he was a great dog.