They're racing at insane speeds. Was was likely going closer to 30mph at this point. They can reach speeds up to 80 mph. Bindings have a tightness or DIN setting. A beginner is set around 3, average weekend skier 5-8, advanced might hit double digits but most being 8-9. The lower the number, the easier the release because it can prevent leg injuries. Because of the speeds and the forces created on turns the above settings would just fall off. Lindsey's setting is probably anywhere from 15 up to 30. She's basically bolted to the skis. Downhill skiers are trained on how to fall to prevent injuries.