The amount of blue can easily be tweaked by increasing or decreasing the opacity of the de-blued clips before applying the LUT.
Comparison: http://www.framecompare.com/image-compare/screenshotcomparison/7KZYLNNX
Holy crap, I forgot how bad the original Luke ghost looked. He looks like one of the ghosts from Ghostbusters 2016.
I think the full de-blue is too much, but the 50% version looks nice. It fits more with my expectations of what a Force Ghost should look like.