Ondra creates a new thumb move cruising the first crux

The picture is not clear at all as it is a print screen from the first crux move in the final where all the last three struggled due to possibly deteriorating conditions on the sloper. Adam actually put his thumb on top of his pointer as you normally do on a crimper. With the pressure of the thump it seemed he created more pressure and cruised the same move Jakob Schubert could not do. Have not seen this thumb-over-pointer on a slooper before so possibly this technique should be given a new name. Any takers?