I didn't see a single "mistake", that dude can flat out skate, completely sic tricks, nice job with the music and set, reminded me of when we used to ride our dirt bikes in an old abandoned amusement park. Nice OP, thanks for posting this..
One quick example:
http://youtu.be/cbSbbY5ibas?t=1m27s
After hitting the pole it almost looks like he lost balance and did some fancy footwork to catch himself. I realize that has got to be all skill though, no way in heck I would have even been able to do the flip jump thing. Still to me it appeared as if it were a mistake...several times I was like "did he plan that or did he just kind of fake it?"
OK here's another real quick:
http://youtu.be/cbSbbY5ibas?t=3m20s
I felt like the intention was to balance on the pipe much longer, then do some fancy hop off. Instead he just kind of bounced off of it, and I had the reaction of "that was it?". Again, I couldn't do that...so there is definitely skill there. But to me, it just seemed like it was a mistake. Like watching a gymnast jump up and grab the parallel bars, do a few swings and then let go and flip to the ground without doing any other stunts on the bars.
There were several other moments like that throughout the whole thing. I don't want to tear this guy apart, he's obviously talented...but that's why it seemed kind of weird to me.