In fact, the GPU is capable of 1440p at 60 fps - an option I'm sure most gamers would choose over 2160p @ 30 fps.
With out a doubt! Thanks for sharing this post. Most of it was over my head. I say, we have come a long way. Remember Contra on Nintendo? LOL
TL;DR - Game consoles this generation have focussed on high resolutions and graphical quality, over frame rates and gameplay / world / immersion complexity.
Ah, good old Contra, I remember playing the MS-DOS version in the early 90s :)