This one looks cool, if I do say so. The point of it being "corrugated" is to allow all of the motions to merely change the local waviness of a rigid skin in response to combinations of curvature.
The main sacrifices, of course, are in the torsional and bending stiffness you'd normally get from the skin. The need to have the airfoil flexible enough to morph flies in the face of the need to resist "flutter" while flying. I imagine some extra lattice structure between all ribs that ONLY improve the torsional stiffness, but otherwise allow it to bend in two dimensions.
