The more layers you composite together with film, the grainier the shot will end up, since the grain of each layer of film is included in the composite. With digital compositing you can isolate the elements and combine them all separately, so you’re not adding grain on top of grain on top of grain.
True. But what did the SE version do to make it so clean and crisp, particularly the vents on the back end - and about that was the offensive to the restoration plan?