This is a reference to all union activity at Qantas.
Virgin also has unions to deal with as do all large Australian companies. However, by and large Virgin manage to work through issues at the bargaining table rather than by catfights in the press (airing all the dirty laundry) and shutting down the airline.
I think Tony Morris has a point, but from personal experience many of those staff started out as keen, helpful people and ended up with a bad attitude due to the horrible way they were treated by Qantas management year in year out. That's not the right way to behave, but it's still understandable.