He seems fast and efficient. And I agree, the rider was pretty much letting him run away to the fences (though he didn't seem strong), so I would not hold that against him. I think he'd be fabulous if he was properly balanced.
I was watching his ears and he rarely turned them back so he was ok with what was going on back there, no spurs, hard hands. If you could get him working in a better frame he's got what it takes to compete in hunter.