A longer course is always a good thing. But the reports from ABC News and others claim a vehicle failure caused the crash.
Jessica Combs died on August 27, 2019, after crashing a jet-powered car while setting a land speed record as part of the North American Eagle Project on a dry lake bed in the Alvord Desert, Oregon. The crash was caused by a failure of a front wheel, likely caused by hitting an object in the desert, which caused the front wheel assembly to collapse at a speed nearing 523 mph (842 km/h). The official cause of death was determined to be blunt-force trauma to the head occurring prior to the fire that engulfed the race vehicle after the crash.
Again, not using pneumatic tires, the NAE used solid metal wheels which dig a trench in the surface for steering control. Apparently, an unseen solid object triggered the wheel collapse. As I said, the Goodyear pneumatic tires on our wheels were tested at 850mph in 1970. 53 years later, I am certain pneumatic tires could do the job safely.