This is actually not the case. I have a 2k copy (2048x858) of a 35mm scan, which shows the pattern fairly clearly.
Was the scan performed at that resolution or was it done at a higher res then laster down-sampled to 2k?
It was scanned at 4K. The detail at 4K resolution is actually not all that much better than at 2K. Mike Verta used overlays of multiple prints to obtain the clear edges you see in the image poita posted. So, the edge is more grainy on an actual print, but even at 2K the pattern is clearly visible.
Here’s a blowup of the 2K downscale:
