It is definitely built off of the landing. He's not actually hitting the gap. If he were clearing the gap, the in-run would need to be to lookers right of the the trees and stumps in the picture. Second, if you pay attention, the in-run is only about 50ft long. The in-run to clear the gap is MUCH longer.
It is still sick though. Just saying whoever it is, Pep or Chunky Cheese, he's not gaping it.