Helping other drivers to spin is not part of non-contact motorsport, deliberate contact is completely unacceptable in any situation but may be viewed less seriously when the speeds and danger are lower, shoving a car out of the way at a hairpin is unsportsmanlike and ruins racing. Deliberately spinning a car out at high speed on a straight is nothing short of assault with a deadly weapon, and if there is evidence to prove that this was a deliberate action there's no way it can be anything other than manslaughter.
Well this looks like a clear cut situation from what can be seen in the video (which may not be the full story). One car clearly span the other through contact due to the driver inexplicably nudging his nose in then pulling up the track, suggesting either total incompetence or a deliberate attempt to spin the other car, either way this was not just a clear cut tragic accident.
Very few oval series have any association with the FIA, the only example I can think of was the ill fated ASCAR/European oval nonsense. NASCAR and the other independent bodies don't answer to the FIA, neither does grassroots motorsport organsied by local promoters (ie. short circuit and autograss), which although it gets very little publicity probably has as many racers in the UK as all forms of car to car racing that answer to the MSA.