Dash-8 400 has a different type of landing gear.
The three SAS incidents was with the 400 which has a different type of landing gear then the landing gear on the 100/200/300.
But 2 years ago there was a Dash-8 from Iceland, that had a gear collapse in Greenland under similar conditions.
Might be that the Dash-8 is not as suitable under these conditions as the Dash-7 that Air Greenland used to operate.