Ray, I will venture to say that this "interview syndrome" is another (of many) British legacy to the peoples of this part of the world.
In Emirates, you are always treated as a "trainee," a "candidate," a "student," stuff like that. It doesn't matter if you have been here for twenty years or so.
In essence, those HR (human remains) folks decide your career progress.
Interviews, tests, psychometrics, more tests, and in the end, they screw up and hire or upgrade some weirdo to fly their airplanes