Just a thought, has anyone thought of the unsung heros', those designers who built a structure that survived the water impact and allowed the overwing exits to open without jamming as well as the electrical engineers whose emergency lighting probably came on to give the 10 minutes of illumination as required.
Normally the first indication whether our design functioned as required is during a survivable incdent rather than a fatal one.
Although I was not involved in the design of the A320 I feel proud that my fellow collegues produced a successful design.
rtb