I tend to agree, but we should give UHD it's due. It will have a greater range between the darkest and lightest, allowing us to see details in shadows that we can't today. And the range of colors will be noticeably better, from about 35% of human color perception to about 75%. Granted, some lower cost ones won't do that today, and perhaps that will persist.
Another thing it allows, and has been demoed, is the ability to show two completely different programs on the screen at the same time. Granted, you both have to be wearing glasses and headphones, but you and your spouse can watch two different shows on the same TV at the same time. I don't know of anyone actually selling a TV with that capability.
And, in theory, they can develop it to make much better 3D, possibly glasses free. This would be related to the previous paragraph.
Greater resolution? Except as how it allows some of the above, MEH!