No big thing...Performed a reject/abort on runway 32 ,a few years ago ,with the 320.we actioned at 90knots,and with brake setting auto we were stopped by the 07 intersection(V1 about 140)..The wheel temps went up to 480,but the fuse plugs held,and after 25 mins of brake cooling(external,as no fans fitted on the the gear)we again Departed for YVR.
IN this case I can only assume a higher speed at the reject,and the YOW area have a Hot session of weather(it was a transient flight,what was the residual brake temp?),all would contribute to the plugs going...
cheers..