That photo does not show the difference between them very well at all. I suggest looking at them in person, I compared them side by side today and the difference is substantial. The 2018 Air is not even any brighter then my 2011 MBA, its actually disgraceful. This is coming from someone who desperately wanted the new Air to be great as I really want to upgradeYou are right about one thing though, the average consumer will not care or even notice.
Yea i'm going to see them in person later this month! on Apple's website they have it as 300 nits brightness, the panel seems the same in specs as the 12" Macbook. I wonder if it's the display units in the Apple store? i'm reaching here, i have not idea. I've seen the 12" Macbook in person and i thought the screen looked great, this is suppose to be the same i think.