just my bit...this thing about half the doors not opening.
well when a fuselage is buckled on top of plug type doors, frightening as it is this is to be expected. Certification is done on useable doors not on ones that have stressed from a fusealge that has buckled.
The one frightening thing for me on Airbuses and I'm in the game a long time is there have been numerous incidents of brake failures. Does it mention it in the QRH? No. One is expected to memorise the action of feet off the brakes, select NWS/Anti skid off and then apply alternate brakes. My company had this happen a 321 on a short rwy....the crew were grey post flight.
The smoke checklist is a shambles also.....rant over.
Whatever the outcome of the A340 rwy excursion, there will be lessons for us all to learn.