Well, the guy CLEARLY has some form of riding training because if he couldn't ride at all, he would've fallen straight off. He rode around without stirrups quite alot without falling around at all ( excluding in front of, over and just after jumps).
I would say that he had NEVER jumped before though. Just because you can ride doesn't mean you can automatically jump.
Poor horse though, when he stopped, it was REALLY rider error and he DEFINITELY did not deserve to be smacked for it! And even if he did, you should smack a horse directly after the "offense" occured, not 5 mins later. That poor horse had no idea why he was being punished! (My rule of thumb is to give the horse the benefit of the doubt for the first stop, because they USUALLY stop due to rider error, I then make SURE I am riding correctly and if they then stop a second time and I am sure I was riding properly, I smack them).
LOVELY little horse though!! So scopey and HONEST!!!!!!
This is why I don't let ANYONE but me on my horses!