The new icon looks weird not just because it's a change, but because if you think of the face as being 3D and illuminated by a light source, the new icon doesn't scan as easily as the old one. You'd have to assume the face is turning away from you but the light is slightly backlighting them and putting the closer part in shadow. Anyways it's a small change but I do think it indicates people internally aren't thinking about whether the design makes sense.