Southwest experienced this kind of scheduling issue in 2021 [1], and again in 2022 [2]. Honestly, if they're running win 3.1 or win 95 as suggested, I think that puts them in a better place tech wise than keeping up with the Joneses on the upgrade treadmill --- although they should consider updating to windows 3.11, because they have a workgroup :P and the microsoft hearts network is pretty cool; but they have historically done poorly on scheduling after a significant disruption. An article from last year [3] says they updated their crew assignment software as well as increased staffing in colder airports and in general and got more deicing equipment. We won't really be able to tell if it works, until they experience another disruption.
This isn't true, and that should have been obvious to technical people. It's so sad that we have a tech media that doesn't give a damn about making things up.
OMFG, does this mean we need to be prepared for a (juicy) “IT failure” that brings down Southwest at some point?