"The circumstances that led to this accident is somewhat similar to the recent PIA A320 crash; go around after a ground contact".
There's only one similarity: PIA accident appears to be caused by a grossly "high and fast" final approach, gear up ground contact at high speed and a subsequent go around with damaged engines.
Air Canada accident was caused by a non standard extention of ground spoilers in flight at low altitude, causing the aircraft to hit the ground at high G, regardless of the go around maneuver initiated still in flight.
What caused each accident were two completely different (wrong) decisions. AC accident was caused by a split second mistake, caused by following a non standard procedure.
PIA accident, on the other hand, was caused by two major mistakes, deliberated decisions, with many chances to be revised.