Oh yeah, the SE colours have been completely screwed with. But of course, in terms of the "look" having a bluish cast over the image the way the SE does is much more accurate than the GOUT, which is basically black and white. Luke with the wampa and lost in the blizzard/rescued by Han is the most bluish sequence in the whole film, it's a pretty intense, dense blue, and the SE gets this much better than a lot of other sources, while the GOUT on its own has almost no colour and is in this respect useless. For most of the other interiors, it's sort of in between the two; neither are accurate, the GOUT lacks all blue, but the SE gave the whole image a strong blue/teal tint whereas the original only had a milder tint.

The GOUT doesn't really give you anything like the theatrical colours, so applying the GOUT histograms to the SE is basically purposeless unless you are going to correct them massively from there, although it looks more attractive than the SE on its own. It's a good improvement on the SE, but in some ways it's equally artificial. I think you would have to tweak it all by eye in order to get it to look good; ROTJ on the raw GOUT seems to have suffered the least so those test pics generally hold up though.