I didn't suggest the crew would happily have flown a different SID to the one on the FPL. But if the crew were expecting to fly to DUS and were present with a FPL that said EDI, they must surely have questioned it with someone before engine start. Why on earth would a crew just assume their paperwork is right when their roster said something else? In almost 40 years in this business, I don't know of any crew who have not at least questioned a change to confirm everyone agrees and accepts so as to continue.