The title of the thread includes the word radical so I personally am happy to see Angel's extreme make-over mock ups because they really change the mood and look of the films rather than just correcting the colour by removing the tints.
Perhaps in some cases blending the more extreme changes with the original footage creates a more natural look.
The OT was largely filmed on real sets an in real locations and therefore less crisp and contrast heavy but the official PT is often the other way, too blurry and plastic.