If they were able to stop with 3k left on a 6500 ft runway they couldn’t have been going very fast when they took the bird.
The article seems a bit conflicted. Approaching takeoff speed and getting stopped again in 3500 ft. is a bit much to believe.
I remember going through there when Alaska was still running -27’s on that route.
They’d stand on the brakes at the end of the runway, jam the throttles forward, and hope for the best.