Geometry smoothing is off (it would balloon the object), and crease angle was set in object properties on per-object basis.

The apparent mismatch of the shadow to the geometry is what really caught my attention.  The ray traced shadow seems too close to the depth map preview shadow's blockiness.

Unless I am mistaken or something has changed, crease angle doesn't affect object smoothing (which would be useful).  Smoothing creates geometry, crease angle affects (phong?) interpolation of surface normals at rendertime.