For sure. I’ve gotta assume they used the master film for scanning Monty Python, and if it was stored properly they probably wouldn’t have to do a ton of restoration and cleaning, but I don’t know the specifics. 4K77’s work is amazing and admirable, but not really watchable to me for exactly the reason you mentioned. I don’t think any amount of cleanup would fix that kind of degradation, though it’s still an incredible representation and artifact of the film’s history. It’s a shame that project was only necessary because of the Lucas’ stubbornness.