Have you noticed hal, as an editor, in more recent movies are deleted scenes added to the Bluray in their unfinished versions rather than becoming fodder for editors, or is this more of the direction of each studio and director and only some movies have somewhat polished deleted material?
I think this has more to do with when in the editorial process the shot is cut. Some shots/scenes are cut very late when all of the FX are done, and some not.
Saruman’s appearance was cut very late from Return of the King, to the chagrin Count Dooku. But we got the extended editions!