I am astonished, both by the failure of this windshield and by the successful landing of the aircraft.
Total respect to the crew. Extremely well done !! (And a speedy recovery to those injured as well).
Looks to me from the photos that the windshield frame is still bolted in place, but the main pressure bearing layer of the window presumably failed and the whole window assembly then collapsed outwards and broke away from its glued joint to the frame.
Hopefully this was a one in a million materials failure, like the crack in the turbine disc of the Sioux City ?DC10 #2 engine. Judging from the general wear to the area around the ECAM page selection panel switches (on the centre console), this aircraft was either not very new or had flown many cycles. Can anyone comment on that?