Sorry, but I don't follow your logic here.
The new rMini has the same processor as the 5S and iPad Air. Additionally, Schiller claims that it has the same 10-hour battery life as the first Mini.
With all of that in mind, how is this iPad 3 all over again? If the rMini is handicapped, then so too are the 5S and the Air as they have the same specs?
Your logic is flawed if you believe that.. The Air has more physical space for a bigger battery to power a high-res retina LCD.. It was the reason why the iPad3/4 was thicker was to accomodate the Retina res.. Sure they may be using IGZO or similar technology now and the A7 is also more power efficient. Anyways thats not my beef.. even though I get almost 20 hours usage on my Mini Gen1. I doubt the new one with Retina can do the same anymore and that's a negative to me. Design is my beef now, going backwards even if it's slight is just depressing.