Heheee, nice video! There's no doubt a professional rider at Marc Coma/Cyril Despres level can do big jumps, but I was also sceptical about him doing true freestyle jumps by just oogling the pictures. The video shows things in better perspective - the jumps were done at relatively moderate heights.
Reckon it took a few practice jumps under the FMX-dude's scrutiny, but quite frankly those pictures looked too polished and idealistic to be real for me too. It was simply too much out of a rally rider's character to do those stunts. As Coma said they like to keep the wheels as much as possible in ground contact to maintain speed. But, hey; this was freestyling - a different animal altogether.
I'd like more videos like that, please! Excellent stuff!