This is the study that the linked OP article is referencing. Out of 8 different kinds of WR routes, MT was the best in 2019 for 4 of them. That's very impressive and pretty good evidence that he is the best route runner in the NFL. It's not by accident either, MT is the best because we constantly works to be the best.
https://www.nfl.com/news/top-3-nfl-wide-receivers-by-route-michael-thomas-reigns