Ref Mr and Mrs Pyjamas
Maybe this case wasn't isolated for them. Let's consider they travel with QF first class or business class reasonably frequently. Have they been let down time and time again by sh!tty little things that just shouldn't happen when they are spending so much money.
Just maybe this wasn't just a case of ONE set of Pyjamas. Maybe it was more a case of "well stuff it, I have finally had a gut full of this airline."
Always two sides to a story and I'm not sure that one isolated incident such as this would create such a meltdown.