What the don is alluding to is this: Emirates make the rules in a fairly arbitrary manner. They also regularly change the rules the same way. They won't necessarily tell you what the rules are but you are expected to know them anyway. Maybe yesterday they would have accepted an application from a C17 pilot, but today they won't. Tomorrow they might again. Filling in the application is really good practice for what life is like when you get here.
Now, are you sure you want to come?