All I saw was secondary vehicles placed where they shouldn't be, and lamed landings or executions. Use the terrain bro, in my opinion secondary vehicles should mostly be used to assist you in pulling off a combo, not be a substitute for a natural bump.
Didn't enjoy the video very much, but that's just me, I'm sure it's a crowd-pleaser...
I agree most with this. While there were a few very nice stunts, in return there were a whole lot of stunts like the taxiboost 2 crane precision which should definitely have been done without the Packer (also since it's not even legit there afaik).
While you have potential, you really have a long way before achieving the level you could achieve. Try doing more different stuff like natural bumps, BSMs, P2Bs, grinds.