That's valid, but as mentioned, I don't have much confidence this is 'TRUE' HDR, and I doubt we'd see that at a lower resolution anyway... if any true HDR monitor panels are developed (i.e 10-bit, 1000nits etc), it would make logical sense for them to be 1440p/4K. I think manufacturers know that people gaming at that res are more likely to cough up for the insane price tag.
Yeah true that on both accounts
I forgot that in order for them to meet the ultra HD premium cert., they would also need to have a 4k res. for that:
Resolution - Given the name is "Ultra HD Premium" the display must be able to support a resolution of at least 3840 x 2160. This is often referred to as "4K", although officially this resolution is "Ultra HD", and "4k" is 4096 x 2160.