Bondi
A court case just shows that someone is trying to prove something that is unclear in law.
Most of UK law is case law ( I am assuming that the Norwegian courts work the same way) and no one has done anything wrong untill a court says so.
As far as I can see PARAT are trying to clear this employment thing up as the law is unclear, if it was not the Norwegian govement authorities would have put a stop to it.
In short if PARAT can make a good enough case to the Norwegian courts the airline will have to change its practices, if not the status quo continues.
This sort of case law is not like say taking a car without consent where the law is clear, it is the very lack of clarity that is making PARAT take the action.