It's all you need if you want to distort the relative danger of the 2 events. In the real world a single F1 event and a Reno event take place over a similar timespan, and, therefor, must have a similar amount of activity. Both events have qualifying, practice, and racing. It's simply not possible to have significantly more racing at a Reno event that at an F1 event.

Equating a single Reno event with an entire F1 season is completely absurd.