That A320 was a hoax video BTW.
I have watched the video in question several times. Nothing more than a 'firm' touchdown- I have seen Concorde touch down harder than that. Several oscillations- as said, probably an inexperienced pilot on type feeling for the ground rather too enthusiastically. But nothing that needs a post mortem, nothing overstressed (without doubt). You want to see a 'positive' landing? The Interflug IL62 landing on grass in East Germany. This- nothing unusual at all. Let's not go making mountains out of molehills, this is a professional pilots forum, not airliners.net or youtube (with it's 10,000 'educated' critical remarks!).