Actually, all Parker has done is start the whipsaw game sooner rather than later. This move was a certainty within 12 months anyway. I suspect Eagle ALPA will pass this to the pilots for vote and let them decide with a good chance for it to squeak through, just like Pinnacle.
Should it miraculously fail, he'll just begin dialing the heat up by minimizing flow and letting normal attrition shrink the airline and snub Eagle pilots out as "team players". Wouldn't surprise me to know he dusted off an old copy of AMR's 1993 whipsaw playbook and begin moving others into all hubs and even crew rooms.