No pilot expected Parker to give pilots a raise. The reason it was given? AA was no longer getting the pilot applicants they thought they could get. They were going to everybody else with a better compensation package. Some were resigning in indoc class, others a few years into employment.
The writing was on the wall, and as was said, 61% plus of the pilot group was set to retire by 2022. Had they waited until then, the fleet would be half parked, and you would be out of a job possibly.
If the mechanics and or any other group has that kind of leverage, you are going to see raises as well, and you should.