To fly you simply have to throw yourself at the ground and miss. Emphasis on MISS

It looks like he just belly flopped onto the concrete

Who moved the invisible truck?

i'd give him an 8 out of 10, as he didn't stick the landing, he bounced

I worked on distribution and this sort of thing genuinely happens all the time. People underestimate the forces involved when moving pallets and packing. I once picked up a small pallet with a fork lift that said 200kg (440lbs) from the top of a semi. Turns out the bloody thing was full of horse shoes and weighed closer to 4 tonnes. Fork lift damn near toppled over.
Then you have all the idiots who thinks they can just let go of a pallet truck with 200kg and let it roll to where they're going.

This will never NOT make me laugh heartily

Disrespect your surroundings!