any decent scope is going to have glass that is good enough to do what rifle scope glass is supposed to do.
Your point is fair enough though I can’t say that I 100% agree.
Just last month I had a deer at last light that I could clearly see through my Meopta 15x56 at 50 yards, in timber. For the life of me I couldn’t even pick up its outline in my SS 6x42 mil-quad and certainly couldn’t have made a responsible shot. Good thing it was a spike and I had no desire to shoot it anyhow. I can think of 3-4 other such instances. They’re awesome mechanically but the glass is sub par in low light and wasn’t “good enough” for me.