For a reconstruction, I would agree, for a preservation, I would leave them in at a low level.
There is no doubt that they would not have wanted them to show, but they are pretty clear on every print I have seen, and were documented at the time, so they are an artifact of the film making process circa 1977, just like bad comps, frame jumps, coma on the stars and other issues.
For a version I would want to sit down and watch today, I'd rather them gone, but for a preservation master, I would be leaving them in.
Decisions like this are what make preservation and restoration a tricky beast.