This looks like a severe hard landing outcome following a bounce on A320’s fitted with pre SEC (Spoiler Elevator Computer) Modification standard. On aircraft with the old SEC, if the aircraft is landed without reducing the Thrust Levers to IDLE in the flare (i.e. Thrust Levers still in the CLB detent), the aircraft will likely bounce without Ground Spoiler extension. The bounce being caused by too high energy level and lack of lift destruction. If, during the first bounce, the Thrust Levers are then moved towards the IDLE position within 3 seconds of the initial touchdown, the Ground Spoilers will extend FULLY. That leads to a sudden loss of lift and results in the hard landing on the second touchdown. G force on the second touchdown is typically in the region of 3.2G
On aircraft with the SEC modification only PARTIAL ground spoiler extension will occur in the above scenario. The second touchdown G force is now typically in the region of 1.7G. In addition, the number and amplitude of bounces is reduced with the new SEC standard.
Which SEC standard was fitted here I wonder?

That could’ve ended very badly. They were lucky.