Adywan, Projects 4K77 and 4K83 are definitely 4K. They have less detail than the 1080p BluRays, but they’re absolutely 4K.
Adywan clearly meant that the visible detail level is less that what is already in the 1080p blu-ray, which makes sense as one is from negatives and the other from old release prints.
Sure he did, but he said “even the team would admit these aren’t 4K” and… well, they most definitely are.