Payscale,
SAS Commuter is a wholly owned subsidiary of SAS and their only customer is SAS airline. To all intents and purposes SAS Commuter is a part of SAS Airline. Try buying a ticket from SAS Commuter...
I worked for SAS Commuter a couple of years ago and at that time the pilot corps was common to both airlines but the cabin crew were employed by either SAS Commuter or SAS Airline.
The pilots could, for instance, bid on both SAS Airline and SAS Commuter.
Maybe that has changed since then.
Maybe a B767 pilot bidding for F50 or Q400 had to resign from SAS Airline and be hired by SAS Commuter.
Maybe they chose to fire pilots flying for SAS Commuter as most of the routes being closed are Commuter routes.
Maybe I'm completely wrong about it. Does it matter who is right and who is wrong?
I still say it's a moot point. If you are fired it doesn't matter who fired you; you are still out of a job and my sympathies go out to those 91 pilots.