From an outsiders POV I don't think its the Aircraft per say its more of a regional market issue in Scandinavia, There was a Norwegian DH8 operator went bust at xmas but wasn't mentioned here.
The price the punters are willing to pay is far lower than the actual cost of operating the aircraft with the available loads with the local cost base.
The none local airlines can just about cover costs but there is a hellva load of social dodging and cheaper oversight countries to do it.
The locals want a Swedish operator to do the routes but they are not willing to pay the cost of that.