That would be how it works internally. And it would still be possible to continue to do it that way.
But I'd also like to have an alternative, better workflow, maybe based on an intermediary view, for ex:
1) You place a section plane
2) by "activating" (somehow) that section plane, you place yourself into a new view, that is orthogonal to that section plane, has a white background, and that has its geometry cut (and maybe optionally everything outside the viewed objects is hidden) and the working plane already placed. Basically what you do in Revit. But in FreeCAD it would still be a normal 3D view, only it doesn't look like one
3) There you place your dimensions, texts, etc
So you would get a "TechDraw-like", 2D environment, but still in the 3D document.