...so to make it interesting enough for the crowd they have shown what this plane does when provoked, but only enough to make the crowd go wow.
The crowd went 'wow' because they thought they were about to watch the thing auger in!
Even Bob Hoover's displays leave a lot more margin for error than this. Don't give me the crap about visible horizons and photographic errors and so on, it was very, very close to the ground.
RNZAF does similar things in their 757 and I've never been too comfortable watching that either!