Stirred, not Shaken
Exonomad, the construction of modern a/c is an amazing feat. Rivets are heavy, compromise the skins strength, and require thicker panels to gain their strength. A/C are an excellent example of form following function. A/C must be light and strong, period. If you like Bonding and machining, you will love what's coming. "Friction-Stir" welding of Aluminum skin and sub structures. Pioneered in Rockets and missiles, it is a superior solution to saving weight and gaining strength.
Had the A320 had a riveted belly, (some of it is), it may have failed in a different, more catastrophic manner. Rueing the disappearance of rivets?
Airplanes are not meant to land on water (except those constructed with that in mind, specifically), all in all, the 320 is a marvel, I think this last accident only serves to polish its reputation, not impugn it.