This whole operation doesn't seem to have been given any proper thought, it seems more like 'well Norwegian have an Irish AOC, so we should do the same'... I struggle to see how there are any cost savings to be had operating from LHR, one of the most expensive and slot constrained airports in Europe.
As was rightly pointed out, the current deals on offer for SAS new hires, both pilots and cabin crew, are a far cry of what was once on offer, and are substantially below what is on offer at Norwegian, and we're talking SAS Scandinavia here. People based in LHR will not work for peanuts either, let alone leave secure employment elsewhere An organisation like SAS seems to be simply incapable of becoming a profitable entity in its current structure, and is being very naive thinking that an Irish AOC and basing staff outside of Scandinavia will be a solution to all their woes.
For those that don't remember, there are several such failed ventures in the history of SAS, whether we're now talking about Snowflake, for those that remember:
https://en.wikipedia.org/wiki/Snowflake_(airline) or Blue1:
https://en.wikipedia.org/wiki/Blue1 or Spanair
https://en.wikipedia.org/wiki/Spanair , and I wouldn't be surprised if SAS Ireland might meet a similar fate once the beancounters realise that there are no savings to be had, drawing the same conclusion as with the other projects.
I would tread carefully...