I have a slightly different perspective on pantographs :)
Many panto designs are popular because some artist has shared their wonderful "freehand design" on paper for us to copy.
Just because a quilt is quilted with a pantograph doesn't mean it can't be as equally beautiful as one quilted "all free hand".
On the other hand, there are quilts that can go from average to stunning works of arts with custom quilting.
The right panto on the right quilt can also be quite stunning.