He started with a list that had about 164 entries, and they tended to be quite high-rated on IMDb (7 and up). That I noticed but did not record when I looked through those unfamiliar titles hunting for neo-noirs. Their high ratings and his rejection of them for his top list, while retaining neo-noirs, is quite striking. It reinforces my conclusion that neo-noir methodology somehow dominated his quality assessment.
I think you'll find that the list of 53 and his broader candidates list both have very high IMDb ratings, but the non-noir ones I've checked up on are not my cup of tea.
Lately, I added "Cold Pursuit" (2019) to my list. It's fun. Then I find it's a remake of a 2014 Norwegian film "In Order of Disappearance", and that can be added too. "The Highwaymen" (2019) is also not bad. Neither of these would be top of the heap choices, however.
The only take home from Nolte's list is the prominence of neo-noir, and that was not by his design or explicit mention or recognition.