While I somehow doubt it: Wouldn't it be great if the lameness that was NXT S1 was all part of the storyline? As if the writers said lets book the show so poorly, make the guys compete in nonsense challenges that have nothing to do with wrestling, so as to embarrass the NXT participants and give them cause to revolt in such a violent fashion as the pay off. That would be great.
Edit: Realistically, the rest of the RAW roster is vastly more skilled and experienced than the NXT rookies and would have the numbers/skill to back up any retaliatory attack. Therefore the Rookies shouldn't have won if the RAW guys attacked; if they did overcome the Raw vets it would have made no sense. Hence, I can understand why they didn't have anyone help out Cena.
Edit: Realistically, the rest of the RAW roster is vastly more skilled and experienced than the NXT rookies and would have the numbers/skill to back up any retaliatory attack. Therefore the Rookies shouldn't have won if the RAW guys attacked; if they did overcome the Raw vets it would have made no sense. Hence, I can understand why they didn't have anyone help out Cena.