24G,
I think some of the basis for negative comments towards MESA is the perception ad testamonies that they treat their employees poorly.
However, in this case, in my opinion, MESA is damaged goods. Would you as a Delta, United, or USAirways want to forge an alliance after seeing MESA and Delta duke it out in court ? Without alliances, MESA may have a hard time staying in business as a stand-alone carrier.
Just my two cents, your mileage hopefully will vary,
FF