Qantas deserve every bit of bad press they get on this occassion. Yes the pax where handled poorly and could have come off earlier but something far deeper underlines this technical failure.
The 380 fuel tanks have been dogged with problems from day one. Tech services are fully aware that the lining inside the tanks is peeling away and clogging the components within. Engineering management are continually ignoring the problem in the hope it will just go away when in reality it will only get worse. Here's an idea. Fix your f****n planes properly. Then you won't have the delays in the first place.