many reasons why aircraft are underutilized but part of it is crew underutilization. Delays and inefficiencies (that are controllable) causing crews to time out, be out of position under anticipating the reserve needed and then having to use reserves from other bases etc. every company has wx and mx issues to deal with and every company has operational hiccups. But it’s an everyday occurrence with spirit and throw in the fact that instead of being proactive to remedy an issue they are reactive towards everything compounds those issues.