Maybe, but they wouldn't quite have been expecting something like that....even though they should have been expecting and being trained to deal with situations like that. Additionally this could have been an event which lead to the safety standards being what they are now.
This does look quite dated, the cars and everything so it may have been a few years ago.
I mean, in the 50s to 80's in F1, drivers often would be the first one on the scene before the marshalls to help their fellow drivers out if the car was burning....