Perhaps you're right Dufusyte. It just seems hard to separate what is unrealistic because of artistic direction and because of technical errors. This issue seems to come into play during the restoring of films. Often, it is unsure where to draw the line. After hearing what you said and thinking it over, I'm starting to disagree with my earlier opinion. Perhaps a general setting would be better to ensure that no artistic choices are lost.
On a separate note and forgive me if this has already been brought up but are the 1997 (not 2004) editions a reliable source for color timing. As I understand it, the color timing for the 1997 masters was based on a film print of Star Wars that George Lucas owned and claimed to have the definitive coloring. To my eyes the 1997 ones look the most majestic and colorful. Although, to be truthful, these are the ones that I grew up with, so I might be biased to agree with them. For example, I watched the Reivax edition a few weeks ago and loved the way it looked. It seemed so much better compared to the coloring of the 2004 version and the GOUT.