ORIGINAL: Mike_Mc
Here's my guess. You can easily see the runway is tiny and way too short for that plane. I bet he was there on purpose to stop it, but the intention was for it to touch down on the numbers not off the other end.
I agree with Mike_Mc...
The 747 clearly tip stalls at about 10 to 15 feet just before touchdown. If the pilot didn't stall the plane, he would have landed on the numbers and he would have the entire length of the runway to bleed off speed. It probably has no brakes and that is why the guy at the end of the runway is needed
The pilot throttled up to gain speed to recover from the tip stall, which caused him to overshoot the runway. The nose wheel still hasn't touched down yet when it reached the end of the runway! The guy was just too slow to get out of the way.
Juice