It always amazes me when they just get back on the bike after what looks like being a hard hit to the ground!
But personally I think the riders who make it to the elite level somehow got “immune” to all the crashes. It takes years of training and experience to reach elite level, they’ve crashed a couple of times at least…
It a part of the game, just as BMX, horse riding, skiing, etc.
Those who succesfully cope with this also are some of the best athletes in their sport.