I don't see why the Air "needs" retina. If a person needs a retina screen, Apple offers quite a few notebook options for them. If one needs a retina screen AND additional ports, there is the Macbook Pro. Why can't Apple offer a wider variety of options?That's where you lost me.
If they do anything to the Air in the future, they need to give it a Retina screen.
It's just time for that. That's the one feature that has made a few of my Air friends leave it.
It becomes difficult if they have a 4k external, retina iPads, retina iPhones, 4k HDR TV's... The Air screen just starts to become hard not to notice (in a bad way).
2-3 years ago I would agree with you - But in 2018+, all their laptops need to be Retina (IMO)
I really like what Apple did with the iPhone SE. It is my favorite phone to-date. They can go hog-wild with their flagship phones (which I would never buy). But just because I won't buy one doesn't mean I want them to stop making them.
Same with the Macbook Air. I own a variety of macOS devices, but the Macbook Air is my favorite. Apple can go hog-wild with their fancy retina Macbooks, Macbook Pros, etc. (which I would never buy again) but that doesn't mean I want them to stop producing them.
My 2014 4/128 11" MBA is over 3 years old, still running great. But when I need to replace it, I'll be looking for another Macbook Air. (even if only the 13" remains)