Many many SO 's have plenty of jet time - some on machines as mighty as the jumbo. Quite a few also had commands in regional jets or bizjets. Assessed as suitable....please. These guys were suitable when they were hired. They were just used for a few years to save on salaries and now are bypassed on top of that.
As Numero states - some clarity - like a published list of people on bypass with their seniority and reason why/ why not will go a long way.