IMHO,
When creating a 'cutting' drawing perpendicular to the plan, it's a section. It might also be a detail. The term detail implies a change in scale; it's independent of cutting. Details are a subdivision of both plans and sections.
The tool for cutting a perpendicular view in a plan is the section tool. The tool for creating an enlarged drawing without changing plane is the detail tool.
The section tool is perfectly adequate for creating section details from the standpoint of generating the drawing window. The extra step is only needed in order to 1) classify your enlarged section drawing as a detail in the project map, 2) enable use of a detail marker for the purpose of placing multiple flags for a single drawing, which the section tool can't do, which makes automatic numbering
inconvenient.
1) is partially solved with view sets, but not automatically: you can put different view types in a folder, but you have to do each one by hand. Giving the detail tool cutting power wouldn't solve this. (The only solution would have been to unify the tools in the first place.) The difference between a section and a section detail isn't as clear-cut in real life as it is in the project map or toolbox.
2) would disappear if detail markers could refer to section windows, as Alex pointed out.
The power of the detail tool isn't in the window. We've long had the ability to create windows via the section tool, and to capture 2D geometry with a patch. (The detail tool is a better method of doing both, but it's improvement, not invention.) The power is in the detail symbol, in automatic numbering. Before automatic numbering, you had to consider maintenance overhead when calling out details more than once. Now you can call out a detail as many times as you like without fear of losing consistency. Additional clarity at no cost, very Virtual Building.
Down the road, we should be able to refer to 'metadata' about any view from anywhere, text or GDL. Once a detail can refer to a section, there's no reason a zone stamp couldn't refer to an enlarged plan, or a label refer to a wall-type drawing, or a text block refer to whatever.
On the original wish, the origin thing is essential and I voted as such. As for the model-link, you might guess I find the section tool addresses this need as it is.
See you tomorrow,