Reading a Load 15 report is a notoriously dark art.
Airbus, in its wisdom, made it hellishly complicated.
Interpreting the report is tricky due to the multiple combinations of parameteters and the timings of events. The touchdown point is often difficult to judge from a bunch of digits.
It isn't just all about G loading either. In fact Vertical Acceleration coupled with pitch/roll angle play as big a part if not greater in some cases.
Most airlines I have worked with leave it to the Captain to determine if a Hard Landing has occurred (a heavy or overweight landing is a completely different animal) however, when an automatic report pops out of the printer we usually get a call just to make sure.
In this case I do wonder what was uppermost in the minds of the crew....
