When we watch these guys carefully, riding on the edge with no electronics, they were a different breed. They're like the fighter pilots in WWII, flying the Mustangs, Corsairs, Thunderbolt, Lightnings...by the seat of their pants.
What we see now is based on machinery, it's a different kind of rider. Probably only Rossi could ride that stuff now. No one else, not at a competitive level.