Vertices first before curves, and spline patch modeling

The traditional way of drawing a curve in 3d space is by placing a control point and it is instantly connected to the earlier one . But I am suggesting another tool which should enable the user to place and position a series of lone and disconnected control points first, and then you could use the curve drawing tool to draw a line over them and connect them into a curve.This is a better method since you could place a control point , change  the perspective a little and place another . When you draw a curve over them, it would be  more dimensional to  begin with and less planer.

Second, spline patch modeling is something that could leverage polygon modeling. The user creates a spline network while using a patch preview tool to see how it would turn out, and once satisfied the user could commit the entire shape into polygon in one click . All the splines become polygon edges and the previews become surfaces. Here is a video showing how intuitive spline patch modeling is , the software used is Hash A:M . https://www.youtube.com/watch?v=7rAOYGa19WE . I would love to see something like this in polygon based modeling software.