It's oh so convenient that the cameraman "happens" to look down and the camera happens to blur (what is it refocusing on?) between the time when the wings are resting on the ground and when they are picked up and ready for the test flight. Then the camera is conveniently moving and keeping things just a tad blurry while the wings start up. If you compare the appearance of the wings before and after the cut you'll notice some slight differences.
Definitely fake as there is a black square on the right wing in the later (CGI, after the camera has looked up again) images that doesn't exist in the earlier (real) footage. You can clearly see this in the video and your screengrab.
From the video it is also obvious that there is no way someone could have stuck that there in the time it took for the camera to turn away and back again.