X-Form and associativity

In previous threads [1 2],  taught that X-Form is in fact a "glorified edit", but not a real feature (in my understanding).

 

In my practice, I use X-Form to associate poles of a surface to a group of pre-defined points, as taught by  in a previous thread. In this way the surface can be controlled directly  and precisely.

(2)

I noticed that NX have two old-styled commands, "From Poles" and "Through Points". They seems to be low-level, but highly flexible ways of building surfaces. Apparently they are to be retired. In my understanding their successors should be Four Point Surface + X-Form/I-Form. Is this correct?