People on forums often conflate different issues.
First of all, if all things were equal, would a photographer accept gear with more DR, more megapixels, and a better SNR curve? Of course! But obviously, the supposition is pointless, because things aren't ever equal and it's all about making the right compromise for the individual.
Now, when some people (like me) talk about how DR isn't an issue and such, it's from a totally different perspective. The way I improve my photography is that I look at photos I think are amazing, try to understand how they're technically achieved, and then try to apply that to my own photography. It's often a combination of viewing other people's work, reading, experimentation, and then making it my own.
Most often, photos that I see that's just AMAZING, where they share what equipment was used, is quite often pretty old stuff that doesn't come close to what we can get in sensor tech today. When I go try to take great photos like that, I often fall (far) short -- but the shortfall is never "gee, if only I had 2 more steps of DR, I could have done it". And most certainly, it is never, "if only I had 50 megapixels, my shot would be freaking awesome".
That doesn't mean that I wouldn't like 50 megapixels (because, hey, I'm a nerd too, and I appreciate nice technology); but it does mean that it really would make me feel happier a whole lot more than it would improve my photography.
I see it frequently stated that great photography requires mastery of light and composition, and the capturing of a moment. I firmly believe that if you have all three of those elements, it hardly matters whether you have a 5DII or a A7RIII; you'll have a great photo.
So speaking only for myself, when I say that sensor tech isn't an issue, I mean that it really doesn't help me with light, composition, or moment, and for those rare photographs where I have managed to capture all three of those just right, I love my photos from my t2i -- or even Minolta Maxxum 7000i -- just as much as any camera body I've owned since.
My hobby of photography (and hence, interest in gear) isn't to have progressively easier ways to diarize my life and share that with others. It's to improve art in order to achieve images that are of the sort and quality of the work I admire -- and for that things like base ISO DR, given where we're at today with enthusiast cameras, just isn't an issue anymore.