I can see CS's argument here. Most other airlines were back up within the day of the update going out but Delta slogged on and it's outage continued for several

I can see CS's argument here. Most other airlines were back up within the day of the update going out but Delta slogged on and it's outage continued for several days. If Delta and all other airlines experienced a multi-day outage then yeah I see what Delta is saying, but the fact that all other carriers were up and running within the day while Delta took upwards of a week has me thinking this is more on Delta's internal IT policies/controls/etc rather than CS.