Watch, and more importantly listen to the video again. The impact on the back side of the curbs is very dramatic and makes a huge impact sound.
It's also very interesting that the left tire hits the curb first, remains intact, and then the right tire hits and breaks. The part failure that led to the off in the first place was on the right side. Certainly the failure of that part could inturn, with a sever impact to the backside of the curb, lead to the suspension failure.
