A lot of people are being quite insulting to Mr Norris, but I have to say that it looks to me like a simple lack of experience that got him into trouble (or a lack of talent, as you could argue that talent is simply applied experience) rather than any serious disregard or clear stupidity.
Mr Norris was less experienced and driving a much more powerful car than the majority of the field. Accidents and mistakes like this will happen in a series like this, it's inevitable. From what I've read it seems a lot of the lower powered cars complain about having to spend more time watching their rear view to get out of the way of these monsters than actually concentrating on their racing. If those driving the high powered cars are not experienced in dealing with a large amount of slow running cars, there will be accidents
Consider it. Regardless of "track day" experience, there is a guy on his second ever race, in a car with 4 times the power of the majority of the grid, who doesn't even, by his own admission, understand the "etiquette" of the race, which pretty much means he doesn't fully understand the rules. It's a recipe for disaster and he shouldn't really have been allowed on the track.
The power output on this series should be limited to provide a sensible level across the field. Or at least the more powerful cars should be restricted to drivers with a certain amount of race proven experience.
Anyway, what's so much fun about watching three or four super high powered 4wd motors thrashing their way through the rest of the field. If they must have a 500+bhp 4wd class, give them their own series instead.