Does the double waved yellow not have the same effect local to the accident except with less impact on the race if the drivers comply?
Also given the amount of criticism Whiting got for supposedly keeping the safety car out too long at the start of the race and the vitriol thrown at the FIA for safety changes that get in the way of 'true racing' such as tarmacing over the gravel at Parabolica how do you think audiences would react if the safety car was deployed every time a car got stranded in the gravel?