SLF here. The report says that at the time the autobrakes activated, "the airplane’s airspeed was 134 knots, which was also the calculated takeoff decision speed (V1)".
My understanding is (after a quick internet search) that "V1 is the speed by which a pilot must have decided to abort if they are going to stop on the runway". The report states that there was about 3775 feet of runway remaining from the point at which the airplane finally stopped. Does that suggest that V1 could have been higher and the plane still stop on the runway?