There's a thread full of 4K HDR television owners here who appear to be largely happy with their experience to counter your opinion (an opinion which just happens to promote Microsoft's offerings in three different ways.) I'm one of them.
Resolution is the least of what 4K HDR has going for it. Wide color gamut and high dynamic range are significantly more important and brain-melting in practice, though there's a lot to be said for the combination of all three improvements.
I will probably end up picking up a ps4 pro, but most of the reviews I have read seem to suggest it isn't a huge upgrade over the base ps4 experience.
I'm just expressing my own personal opinion that for me getting a 4k set has more to do with pc gaming and blurays than it does with ps4 pro or scorpio. I totally get that people are buying a ps4 pro and 4k set in tandem, without any plans of pc gaming or 4k bluray, but I'm just saying you will get more value out of a 4k set the more ways you have to use it.
The person I replied to had a concern about the number of 4k console games coming out, and I think that is a valid concern. Even Scorpio I doubt will see widespread 4k support. You can disagree that's a valid concern, but I won't agree with you. Based on their post there are valid points to waiting a year or 2 until picking up a 4k hdr set. That's all. I'm sure they would enjoy it though if they picked up an hdr set! So maybe they are over thinking it lol.