Why wouldn't we? It always comes out in the end, and in my mind, is in the end, it worked. The driver is not only alive, but sounds like he is pretty healthy considering he struck a wall at 200mph, then got hit again by another car going 200mph, while falling out of the sky like Ricky Bobby.
They have to understand the failure mode to continue to implement new designs and materials to improve safety. This is a testiment of that work since 19yrs ago, they should be proud!
This is NASCAR, not NHTSA.