Astonishing. Based on reports from employees on Reddit (https://www.reddit.com/r/SouthwestAirlines/comments/zw32yt/p...), the actual story here is that Southwest has had a complete operational failure and is simply incapable of determining where their crews are, what flights they are eligible for, and associating them with flights on the schedule.
It sounds like there is a semi-automated system which broke somehow, or more likely failed to support the load of cascading changes that resulted from weather disruptions, and they simply don't have the capacity or flexibility to deal with this other than by cancelling flights for three days until they can sort everything out manually.
Reading between the lines a bit, one possible root cause is that their semi-automated system required crew members to update their status by phone when something goes wrong (perhaps with another human in the loop), and the sheer volume of disruption overloaded their phone system and resulted in the automated system becoming completely decoupled from the actual state of reality without sufficient bandwidth in the phone channel to get it back in sync in a reasonable amount of time.
It sounds like there is a semi-automated system which broke somehow, or more likely failed to support the load of cascading changes that resulted from weather disruptions, and they simply don't have the capacity or flexibility to deal with this other than by cancelling flights for three days until they can sort everything out manually.
Reading between the lines a bit, one possible root cause is that their semi-automated system required crew members to update their status by phone when something goes wrong (perhaps with another human in the loop), and the sheer volume of disruption overloaded their phone system and resulted in the automated system becoming completely decoupled from the actual state of reality without sufficient bandwidth in the phone channel to get it back in sync in a reasonable amount of time.