All of what Harmy said is correct. After I posted my previous message, part of me kept thinking "Why would an earlier source look grainier?" So now I really don't know why the GOUT appears sharper and "more detailed" than the 35mm, when a 35mm print obviously has more real detail than a standard-definition video transfer, even if it's from an earlier-generation source. Nor do I know why it appears "grainier" when an IP would have less grain than a print.
Perhaps the GOUT has artificial sharpening as well as DVNR? That's the only thing I can think of.
I do know that the Blockade Runner explosion has extra detail in the Technidisc and GOUT, where on actual prints it's blown out and appears solid white, due to the increased contrast with each generation. I was thinking about that when I wrote my original response, but obviously this is something entirely different.
This is why we need to stop using the GOUT as a frame of reference. :)