Do we actually know it was a flat? The twitter video says a bump in the road but honestly it looked like the tyre could have just slid a little and thrown off her balance. That picture she tweeted is grim, looks like the barrier tried to remove her knee cap.
It looks like she was carrying too much speed into the corner, touched a brake and that caused the wobble. She may have punctured subsequently but I don’t think it was the root cause.
Do we actually know it was a flat? The twitter video says a bump in the road but honestly it looked like the tyre could have just slid a little and thrown off her balance. That picture she tweeted is grim, looks like the barrier tried to remove her knee cap.