So, if he was wearing a Hans device, I guess you could assume his neck/spine injuries would have been much worse without one...

I've thought about getting one, but am a racer on a budget. Plus I always figured it could never happen to me

So, I assume the knee bar of the cage was crumpled in? Or did his seat shift forward? Just curious with regards to the knee injuries.
I know we have padding on that bar, but I guess with enough force it wouldnt matter?