Batman:
if that were true, that they have actually discussed this very scenario, the only thing to do was for Masi to red flag the race. I'm not sure why that wasn't discussed, if they actually went to the length of all that, everybody had the question but nobody thought of the answer.
I believe that Rai crashed on that same corner in practice, I remember reading something where Masi was asked if it happened during the race would he red flag it like he did in practice and he said no.
So the no-red flag may have been pre-determined.