Does the superman style have any chance to be seen in competition?
I really doubt it. A number of problems pop into my head immediately.


Corners.
French/Italian/Spanish road surfaces.
Holding your legs up long enough to be worth it.
I'm pretty sure this video is staged.


Chris Froome caused a stir this year at the Tour just sitting on his top tube and that looked sketchy enough at 100kmh, twitchy and uncomfortable.