Just an oppinion
I'm not management or crew, I'm in Airport Operations and as many of us, I have flown a couple of times on staff travel, everything was ok every time. Even though sometimes the flight was light (50+ available seats) I still waited but I didnt find that stressfull/frustrating/irritating at all.
The ground staff were always helpful and polite. Not only in DXB but also in other airports (I remember PER especially a couple of days ago)
As for the cabin crew, everytime they asked me if I need anything and they were all the time smiling at me. Its a a hard job, which impacts greatly your mind and body. Sometimes maybe they are not happy-happy joy joy, but to put them all in the same pot its just not fare.
Cheers