I had a 5:15 am flight at 3:30am I got a recording call advising me that the flight has been delayed until 8:00am because the crew did not get enough sleep. Trust me I want that Captain rested, but why didn't they call me when he went to bed last night and I also could have been rested for the flight.
This is such an unbelievable excuse.
There are other airlines, and my suggestion is to use them.