I can only say wow, you were right. They only DVNR'ed the luma.
Tried it myself and here's the luma from the Technidisc with chroma from the color corrected GOUT:
About some filter removing motion blur, I know that since film always has a bit of it's own motion blur, such a filter would remove both the bad blur and the blur we want to stay! It would take some insanely intelligent plugin to see the difference.