Go an read the report again. It clearly mentions that the pilots didn’t apply maximum breaking till they were a good way down the runway. That strongly suggest

Go an read the report again. It clearly mentions that the pilots didn’t apply maximum breaking till they were a good way down the runway. That strongly suggests the pilots were worried about locking up their wheels, and thus were applying the minimum breaking they though they could get away with. Up until they realised they were running out of runway. The runways could have been an extra 600ft long, and they still would have only stopped within 30ft of the end, because it’s quite clear the pilots were trying to use up as much of the runway as they thought they could get away with. A perfectly reasonable approach when you don’t know how hard you can break without causing a loss of traction. You shouldn’t read so much into the amount of spare runway left when you’re dealing with a situation where consuming every spare inch is the safest cause of action.