The link is actually more of a rant about “bleating and whining and high nerd drama over how the restored versions of I and II don’t look—what?—’Blu-ray’ enough." However, there was some shocking information about the state of the original negatives:
Held together with tape, the original negative was filthy and riddled with scratches, rips and tears, some of which broke into the image area; in some sections, parts of the image had actually been torn away. An entire reel (1B) had at some point been removed and replaced with a dupe.
That sounds horrifying, but obviously they were able to complete the restoration successfully…