But it changed color, so that burst wouldn't be so red if it weren't blood. Also, if that's not blood, then where's the guys blood? He HAD to have SOME blood come out, his freaking legs were removed.
It changed color because if you knew about the diffusion of air you'd know that the guy was traveling at an accelerated rate before impact so his color jet would have appeared lighter due to the volume of colored smoke being diffused over a great area making the color less prominent. At the time of the impact, his acceleration was halted exceedingly which allowed the smoke to concentrate in an area and appear more prominent before diffusing normally into the atmosphere thus making it appear darker. When the guy landed at the start of the video, the colored smoke was exact to the smoke puff in the air. The canister never changed it's output of colored smoke throughout the flight.
As for the blood, I agree with Inv3rted. A person just does not explode into blood from an impact like that. You've watched way too many movies. Yeah, there was probably blood that did get scattered, but none that would be so clearly seen from that height from such an amateur camera.