I just posted a gif of the landing on reddit and people are convinced it's edited and fake because they switch the camera almost exactly on impact. I kinda see their point!
(To be explicit; I don't believe it was faked. There was far too many people watching. But I can understand why the gut reaction may not agree.)
But in all seriousness, I suspect they were prepared for it to hit the ground. Once it left the ground, that part was guaranteed.