DAMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
But really, that's not a combo (assuming you're talking about G&W's 4 hits on ROB at the end there). ROB can escape after each and every hit there (i.e. he's already recovered, no longer in hitstun). Actually, okay maybe I was exaggerating. He probably couldn't have avoided the nair, but that's only two hits linked together. Everything else is just the ROB making bad decisions... Why the hell is he DI'ing towards the G&W and not trying to jump away? He has good enough recovery.
EDIT: Actually, I watched it again. He could've escaped the nair. And at the end, between sausage and usmash, he clearly airdodges...