Yeah I watched it live stream and just looked like the front wheel just gave way (so assume punctured) - the tank slapper result comes from whats happening at the front not the back, and it wasn't like she was cranked over cornering excessively hard or anything for any other reason when it went.

Agree too the padding on the corner is dumb AF; its in the wrong place unless you ride the course the other direction.

Hope she recovers well.