Because it seems like a reasonable question to ask when considering the importance of a feature.
But it bears no relevance to me when deciding on a GPU purchase.
If there were only 1 game that supported it, but it was a game I wanted to try then it would factor in to my purchase decision.
Thankfully I'm not purchasing until there are cards from both vendors in plentiful stock and prices stabilised, which I'm guessing won't be until well in to next year, so hopefully by then AMD will have released their FX Super resolution,so we can see how it improves RT performance against NVidia