Whoever wrote that article doesn't understand that most of Wow's customers are not actually visiting Iceland , just merely passing through for a few hours.Currency fluctuations will also apply to Icelandair as well.
I remember Skulli taking out an advert last year for pilots when Icelandair laid off 148 pilots.
A full detailed analysis of the two airlines can be read here:
https://centreforaviation.com/analys...wow-air-424077