The problem with videoing something like this is, at least in this example, there's too much you can't see that's important. For instance, the hovering maneuvers are done over a set of cones or flags on the ground. They are the references that the judges use to determine whether or not the pilot is doing it properly. Just watching the model slowly move around with the camera zoomed in to the point where the helicopter is all you can see, doesn't really show you much.
Also, in the aerobatics, those loops and rolls are done with reference to the flight box and how the flight line is set up. Yes, the model was moving like a scalded cat and yes, those loops "looked" very nice from what little you could see of them. There's just not enough information there to tell how well he "really" did on them. For instance, if those loops didn't match each other (you really can't tell that from the vid) and were well off center, then the pilot may have only been given a 4 to 5 when the maneuver would have otherwise been worth a 7 to 8 out of 10 possible points.
Don't get me wrong, I'm not knocking the video itself. It is "extremely" difficult to video something like this. All in all, the camera operator did a good job of following the action. It's just that in order to get a true idea of what FAI is all about, they need to pan back a bit and try to offer a more overall view. The problem with "that," is that if they do, especially in the aerobatics portion of the vid, the model's going to be a dot in the picture. It's a damned if you do and damned if you don't situation.
Len does fly well though, it's always a pleasure to watch him.