Feature: Correction Deform Modifier

I'd like to propose an idea that I think is very useful. The feature is a Correction Deform modifier(exist in cinema 4d). So, basically this modifier makes the procedurally model correctable even the modifiers above it isn't applied. The vertices can be tweaked as much as you like. Here's a demonstration video(from 1:35 to 5:00): youtu.be/11JwBQkzySE

I'll roughly explain what he had shown in the video.

1. He makes a shape out of a curve.
   
2. Adds a screw modifier.
   
3. Adds a correction modifier and starts tweaking the vertices generated from screw modifier.
   
4. Tweaks the shape of the curve, even after modifying the vertices.

I think its really cool to tweak vertices and still keeping it procedural.