Some years ago there was one Cessna 150 in the Melbourne area that was known for its severe wing drop at point of stall. The flying school was well aware of this defect and banned student solo flying in it. When CASA airworthiness staff investigated, the aircraft owner quickly removed the aircraft from flying and re-rigged the wings which rectified the problem.
Even if they were aware of a wing drop report, it is unlikely that an aircraft owner would bother pulling the aircraft off line for a rigging check - unless pressured by CASA.