Just a glimpse what was possible in Alias back in 2011 (11 years ago):
Notice the awesome convenient way of selecting control points across the surface (and even adjacent surfaces!) via those tiny arrow handles. This is just one of the several types of control point modeling in Alias.
And here is my proposal for the new Control point modeling tool to be added in Rhino 7 SR21 
:
(same image but in PNG format with losless quality)
Rhino 7 SR21 Control point modeling.rar (1.2 MB)