No doubt when you start spending over $1000 for a rifle scope it should be a given that it's "good glass" optically, and the larger the objective the more usable light that is gathered....that's why you'll see better detail in low light with a $1000 scope with a 56mm obj than with a $3000 set of binocs w/ a 40mm.
To a certain extent, you really begin splitting hairs comparing most of the glass mentioned throughout this post. To someone who doesn't stay on their binocs a lot while hunting and looks through their scope even less, they will not immediately recognize the finer points of some of the optical technology. And to be fair, that Hunter is no better or worse off because of the finer details.
Ive gotten a lot of reviews from, of all people, avid bird watchers or "birders". These folks are brutal when it comes to being critical of their optics. If u think about it, they spend a lot of time behind their glass and need the finer points like color separation and edge distortion, to identify the gazillion different birds that they are in search of. The difference between two very similar colors could be the difference from one bird to the next.
All I can say is I spend a ton of my time hunting behind my optics. I have an older Zeiss Conquest from the Meopta partnership days and it's good clear glass. But when I look through my Swaro Z8i it's a whole different level of everything. The same can be said for a Z6 that I recently sold....super good glass but I could totally see a noticeable difference.