You can not do a Wrap feature on Loft face (algorithmic surface) - from help file:
This feature wraps a sketch onto a planar or non-planar face. You can create a planar face from cylindrical, conical, or extruded models.
If you want to simple Emboss or deboss the circles from the face, you can use Extrude with the offset surface end condition.
Tailpiece-mab.SLDPRT.zip 600.4 KB