Awful sight. A lovely, up to date 737. They never squash the ones that need it! I assume A-'s insurance will pay for the damage, the plane will be returned by Christmas with an empty weight a bit more than before the incident (I hesitate to call such an incident an 'accident'), but who compensates the airline for the lost revenue? I hope a large bill will wing its way to A- for the winter contracts the company can no longer fulfill. Who is to compensate the crews for the flying they can no longer do until this thing is returned and checked out?
The attitude here that there is a no-blame culture does not sit well. There is no room for negligence in aviation. A crew member blowing a slide is in a shedload of trouble. Having crew sit in on pushes won't achieve anything- the incidents that do take place are when no crew is present.