Not that it's a contribution to this thread, but I'd like to mention it seems natural under full course yellow to be allowed to overtake the car(s) in front of you, should they 'leave the track' - meaning crash mildly or simply unfortunately gets on the grass, beeing out of the track.
This restart thing, has a strange twist in Nascar - one is allowed to overtake cars in front when first one crosses the line - but only on the right, but then again, we're talking ovals here, a different matter, so this is not a sugstion.
What COULD be considered ( just for entertainmaint or fun ?) is THE LUCKY DOG rule ???