As a guesstimate, the fault happened somewhere at the 46 knots point and it took a few seconds before the crew was ready to cut power and hit the brakes, airplane still accelerating. That would imply alarm-to-full-stop in approx 16-20 seconds. Pretty quick reactions and decision making I'd say?
Took a few seconds? I doubt it. Take even a couple of seconds and the thrust asymmetry at low(ish) speed would have you have you off the runway.