I like how the "perimeter" or furthest extents of a corridor is where the corridor graphic element is placed. This is especially helpful when using one corridor to clip another. However, it turns out, this really is acting like a triangulated surface perimeter, as I am noticing when if I make a component "exclude from triangulation", it is no longer taken into consideration for this bounding corridor graphic. Thus, if I have a DNC component in my template just to superficially extend my corridor for clipping purposes, this component needs to be triangulated or it won't be recognized by the bounding corridor graphic.
I realize that for every desired way I would like to see things work, there is probably someone else who equally wants/needs the current WAD, but seeing as how a corridor no longer even makes a temp surface (like it used to), I see no reason to not always have the corridor graphics bound by the absolute furthest component/feature in the corridor, regardless of triangulation.