Does this study actually say anything to that effect? It seems to imply that olive oil is beneficial or at least not harmful.

I've heard that animal fats are better than that now-banned partially hydrogenated crap, and a lot of people lost a lot of trust in modern nutrition science because of it, which I suspect is a lot of how the idea that animal fats are healthy got popular, but that doesn't prove they are better than regular vegetable oils.