The problem is that the .obj file contains the actual mesh. If a cr2 that is distributed calls an .obj of a commercial figure, it's usually not a problem, since the users must own the commercial figure (i.e. the .obj file) in order to use the cr2. If you distribute an .obj that contains the mesh of Stephainie, it's a copyright violation. If you distribute a cr2 that calls the Stephanie .obj, you're OK.