If Robinson does win it would be because Stein came off across as too liberal for the state. Someone like Roy Cooper or possibly Jeff Jackson would have much better odds of winning this race.
If Robinson wins, it probably means that Trump won the state by 3+ points. I just don't think there's going to be that much ticket splitting irregardless of Robinson's transactions and bad conduct.
Robinson has all of Trump's negatives + he's a religious zealot, unlike the latter. He's weaker than Trump and Biden is also weaker than Stein