Must have worn out his brakes.
With probably a smaller payload than this one, C-17s set takeoff and landing world records: Less than 1400 feet with a payload of 40,000 lbs, I think. This guy didn’t appear to be jumping on the brakes, but as they offloaded some payload prior to takeoff, maybe he did have a full load and did wear down his brakes. You may be right.
“Must have worn out his brakes.”