If you want a better display for clarity = retina display, you will need an A6/A6X. You will not be able to run a RD on an A5. So you do need to give a crap. A very big one.
You completely misunderstood what I was saying. If I want a better display for viewing PDFs, that's my requirement. How they manage that is nothing that I care about nor should I care about. The average consumer should not have to take a class in electrical engineering when looking to make a purchase decision for a device like this. I don't care how Apple manages to give me a device with a better display, I don't care what chips are required to run that display, and I don't care what those chips require in other components, Apple needs to manage that for me. I want a better display next time. That's all I want to worry about.
Focusing so heavily on which chip and how much RAM is akin to a bunch of grease monkeys deriving their manhood from standing around a car with its hood/bonnet up, all trying to outdo the knowledge of each other while staring at this hunk of metal inside, with all the requisite spitting, farting, burping and beer swilling.
My mother has no knowledge of the different chips, but she will recognise the benefits associated with a screen that displays small items very clearly. You contend she should then worry about whether it's official retina, which chip is running inside and how much RAM, when all she wants is to view a picture clearly?
Benefits and outcomes - it's where things are moving, and it's what we as consumers need to focus on, so they deliver based on our usage requirements (and they are left with the method of how best to achieve this), not on some component that is marketed merely to make Intel a household name, and to give hardware manufacturers a reason to come out with a whole new line of machines they can tempt consumers to upgrade to because their current machine doesn't have the latest chip (all the while the consumer still has no idea what a chip is or does). Consumers don't need chips, they need functionality. Yes, chips function, but an average consumer knows nothing about a chip, but everyone understands functionality, and that's what we should be talking about.
For me if they don't deliver a better screen will I be upset? Yes. If they put in something other than "retina" but deliver a better viewing experience for me will I be upset? No. I don't care about the details, and most of the general public doesn't either (and doesn't even have the knowledge to care about those details).
If they do everything else on your list without upgrading chip and RAM and still deliver speed and excellent user experience, would you be upset?