80 kts is hardly high speed and not far in excess of what you could take a high speed exit at after landing. Given a 3000m runway I'd be stopping and probably would't even need the brake fans afterwards. Why continue accelerating when there is a problem and safe stop is not in doubt ?
Obviously closer to V1 you'd be GO minded and would need a very good reason to reject, even a hydraulic system failure wouldn't be enough reason to stop.
Just for info, Airbus use 100 kts.