The Dutch Birdman Is Faking

Take a look at these two frames from Jarnos Smeets test flight video.

In the pre-launch frame, there is a large black dot on the left wing, but no matching dot on the right.

In the post-launch frame, there are large dots on both wings.

That's because the post-launch stuff is CGI.

So why the fakery? Is Smeets just fooling around, or is this project one of those elaborate marketing devices?