Same here Check Airman, I had the same question, the article isn't very clear?
Perhaps the abort resulted in an overrun, or had some other type of off-runway excursion, or impacted something during the abort? Even then these aren't required for reporting usually.
There's a phrase in the article ("Although there was no visible damage...") which made me think that the plane either left the runway or impacted something.
Otherwise I was puzzled about the reporting requirement and the viciousness of the responses, unless the rules are different down under...