Personally Ive never driven Singapore in a sim racer so i may be coming from a completely wrong angle here.
To me the Piquet accident was completely his own doing, he went into Turn 17 a little hot from breaking a little too late for T16, in which case, he ran out of skill and talent and buried the throttle on the exit and spun in area of the track that had 2 red flags in previous sessions (Sutil and Webber @ T18) and thus the wall was waiting on the inside of the track. How many times has the guy crashed this year, 1st in Aus, second in Turkey are the 2 that come to mind, and he blamed cold brakes both times.
To me its the guy trying to stir up allot of B/S for his old employers as he felt either betrayed, abused and or worthless to the team.
The FIA will have a look at the telemetry and footage from the race, as well as their own race data. Hope they run a simulation and see what would have been the outcome.
I believe that Alonso was on a 3 stopper, that was modified to a 2 stopper, whitch would have seen him with points, but personally, i think Piquet is crying over spilt milk.
Im in no way defending Renault as we have to wait for the FIAs decision on the matter, BUT... I think Piquet is acting like a little boy, or like a woman scorned. The guy should just shut up and look for another team or a new formula, like what Bourdais has done, try and rectify something out of a pitiful career to date. And try and stop tarnishing his, as well as his fathers illustrious name as well.