In fact the restoration fixes some rotation in the cells that is present in the original release.
It's not a matter that the new release is GOOD, it's a matter that the last release was so BAD.
I compared the two and there is no way I would prefer the picture of the old letterboxed, artifact ridden edition.
I still hope for a better release in the future, but since this is what the restoration looks like, expect it to look this bad on Blu-Ray.
And yes, the knees were intact in the featurette, but I believe it was letterboxed (and possibly from the unrestored original release). Funny thing is I never checked before I did the edit. (I'm hoping it wasn't restored or I'll feel like an idiot.)
Edit:
Yes the featurette is letterboxed. But the color timing and framing (there was different cropping in the 2 versions) indicate it is from the restored source AND before they removed the knees. The downside is quality.
Featurette Screenshot:

Dr. M's Restored Theatrical Edition:

The manual correction might have been more work, but the quality difference was worth it. Even if it is literally 2 seconds of film.