Would it be appropriate to tip one's cap to the controller for catching a developing
dangerous situation and making the timely call?
*tips cap*
People make mistakes now and again, be it the EgyptAir crew perhaps making a wrong turn, or his controller perhaps giving him a "not quite right" set of instructions.
That other set of eyes is there, catches an error, and has the SA to see what was up, and act. I see this as a good news story.
