OMDB-Pilot where do you got that "knowledge" from?
Basic rule (as I learned in pilot training) in an emergency:
1. aviate
2. navigate
and THEN if you have the time
3. communicate
And during my time as ATC-Controller we knew about that and if
there was a mayday call or a mayday squawk you get EVERYTHING
out of the way for that aircraft.
So basically once you squawk or call emergency and its acknowledged
you can assume the whole area and the entire airport is at your disposal!
But that was centuries ago, maybe you have to hand in a signed emergency form nowadays