Astonished! Bravo!
No possibility to make the same with Circle, Polygon... ?

Ps this follow is not possible because on the Trim there are some lines points / faces who become "under face" !
but cool script anyway!
here i must make some classic arcs on surface before Trim arcs / surface

with your script with Show Points and Rebuild for be more visible on the image (will be the same if increasing number of points and no Rebuild)