I have to agree with Patudo here.
The Zeiss FL fits your list perfectly.
Zero Glare, Calm image.
Excellent centre sharpness..... possibly the best!!
Great low light..... you won't find better!!
Fantastic build.... proven to be tank like, and survive in the field for years.
I thought the Zeiss was very neutral in it's colour, especially compared to Leica or Meopta.
My ONLY reason for selling was the size, and weight, which come with the design, 8x56 and Abbe's.
It's only failing is sharpness across the entire field, which you state is not 'strictly necessary'.
If you are not happy with the Zeiss FL, or a Noctovid.... I would suggest you will need to wait a decade or more for more advancement in optical design.
I also can't see the journey ending, most people would be so happy with either of those two...... astonishing optics!!
But it's interesting, and as always, enjoy the search.
All the best