The guy who got run over would sue, the the Tour Organizers would say "he shouldn't have been in the road, he knows better" to which the guy's attny would say "he didn't see any signs, or fences and its the TdF's fault for allowing him to run out in the road"
The judge would rule for the plantif, and require the entire route to be fenced, which is impossible, so the Event would never be held again.
A few years ago, tragdey struck when a small boy was killed by a vehicle after running out into the road to grab some candy or freebies that the publicity caravan throws to the spectators... Very sad, as it was a child. But the guy today, hahahahah, man he knew the risks.
But to be honest, the moto could have backed off too, but didn't so I think they were trying to send a message of thier own..