Pretty much this. You can't pay the bottom of the barrel wages when charging a premium for your business model, treat your staff like a disposable wipe, and discard them when it becomes inconvenient for you. Only a fool and the dangerously misguided would expect them to flock back when times are better, yet the pay and treatment remains the same as before. Loyalty is a two way street and those who loved working for WDW and ignored all that wasn't so great, have found better paying jobs, probably with a lot less stress and nonsense.