But
The swept wing has an airfoil that is designed with chordwise airflow. An unswept constant chord wing has a different chord when slipped. Relative to change in direction of the airflow. The swept wing may have a similar Area as an unswept one, but the sweep presents less Frontal exposure of the leading edge, reducing drag, also lift, given congruent airspeeds. Higher take off and Vmc speeds.
My thought is that a supercritical wing may be more sensitive to icing at low airspeeds, (takeoff).