Caporegime
The worst thing F1 ever did was ban in-season testing/development. That's why we have cars that always make it to the end of races, and the stable situation where everyone stays in their same relative positions from the beginning of the season. Then we complain when Mercedes does a great job, and no one can catch up during the season, because no one is allowed to develop the car in any significant way.
Yup. The ban on in-season testing, and the limitations on in-season development, are a big problem for the sport. I appreciate the need to limit spiralling costs but it's had huge negative side effects. That said, it wasn't like we didn't get seasons where one team utterly dominated before this.