he didnt blip it, the tire broke loose thus the rpms jumped. the lucky part was he was actually getting back into the throttle when it happened. had he not been, the tire would have more then likely bitten harder when it walked out but because it was still spinning and he actually had power going to it was close enough to the bike when it snapped to not be catostrophic....its similar to when they tell you if you lock up the back tire and it starts to go sideways...dont let go of the rear brake and continue to have it locked up until the bike straightens up.