What is a use of CurveThroughSrfControlPt? When would a curve through a row or column of surface control points be useful?

I did a search and it appears to never having been mentioned here.

Hi David - I confess I do not know what the intent was… the one use I have had for it is in smoothing a row of points - smooth a copy of the curve, and Flow the points from the original to the smoothed…