Yes, but it should be limited more than it is. At disney you only get so many free passes for friends and family. I know someone married to a flight attendant and he flies for free at least 2 to 3 times a month, he goes to NY and Florida almost every weekend because they can. He has never had to wait for a flight either, he has never been bumped since he started dating her and back when they were dating he was flying free too and in first class.
I am not sure if all airlines are like this or just the one she works for, but it needs to be limited to 2 or 3 a year in my opinion.