Whatever one thinks about the XR screen, Apple is leveraging this for all the profit they can get with selling as many units as they can sell. I suspect it would have cost little more to put a Plus-like screen in the XR, but even a fairly insignificant amount per phone would have reduced Apple's overall profit a great deal considering the millions of units that will sell.
Had they put a Plus-like screen in the XR and charged an additional $50 US, it would have cannibalized the XS even more so because the screens would have been closer together, in my opinion, and the difference in cost would have still been $200. Perhaps more who may have been enticed to buy a XS would have gone for the XR. I'm not sure.
And so they put a screen that is very good instead of one that is better, so what do we do? We either pony up for at least a XS and get the best screen and the other refinements or we settle for the XR. For me, I'm still leaning towards the XR. I don't prefer the screen, but I've had a 6s for three years and don't think about its screen. Also, I can't quite come to terms with paying $1149 for the 256GB XS when just about everything I want is in the 128GB XR for $799.
I've toyed around with the idea of buying a Samsung S9 Plus, but I suspect a little digging will reveal issues with them, and I really don't want to leave the Apple ecosystem. My iPhone, 10.5" iPP, and 15" MacBook Pro play nice together.