Stuff me! What an outragous statement! I think you should wind your neck in.
The "decking" and the red mist is a big part of motor racing. Sometimes "the decking" is actually the best bit! And there can be helmet throwing and general aggression. And sometimes there can be simmering feuds and dislike and an ongoing determination that "if he comes anywhere near me, we're going to the wall together and then we'll see who walks away".
I'd never heard of Kevin Ward but he was 17 IIRC so probably not racing long enough to create an ongoing feud with Smoke Stewart, for whom I have a lot of respect as a hard racer. Smoke is a consumate professional and, rightly, worth millions. If there had been anything to sort out it would have been dealt with on track at the next race or somewhere round the back of the trucks in the paddock. He wouldn't deliberately have used the car on him in front of spectators and witnesses. That's an insult to everybody's intelligence. Having seen the gruesome little video, I have not one scintilla of doubt that Ward was shaking the fist as Stewart arrived unsighted and sideways on dirt and between them they misjudged things by 18" and arrived at the same place at the same time.