I did wonder about that, but between the 3 and 6 second mark the viewing angle is looking from the forward-right. You can see the artifact above the wing root, 'between' the right engine and the right gear (as it appears from that angle).
At that viewing angle you can clearly see the wing, wingtip and winglets and it's not those, they appear further aft.
The winglet moves across the area of the damage at about the 10 to 11 second mark.