I'm not entirely sure that it is a salient point that unionization or not would define effective management and profitability an airline .
I think few would argue that a unionized workforce would guarantee that layoffs would never occur, nor that it would mean that there is an intrinsic tie between a unionized pilot group and profitability; hence the ability for management to offer its employees a top wage through bargaining. Even non-unionized carriers often compete with union carriers wages in order to continue attracting talent. It doesn't necessarily mean that one place is superior to another.
Results may vary based on market conditions. Look at AC Jazz, look at the fortunes of Mesa. Both unionized, but different products and management teams.
I find it slightly ironic that if it were not for the union negotiated work-rules on Joe's property that he would not likely be touting his own quality of life and payscale that he currently enjoys, and by his own admission keeps him at ASA as opposed to moving on.