I'm gonna be honest, in this specific context, I don't hate this.
DLSS5 sucks because it takes all the hard work that goes into making games and flattens it out into this kind of uniform pastiche of an art style. It turns every game into the same bland, generic slop.
But if we're talking about kids building experiences for each other in Roblox... Yeah, why not? I don't buy the idea that a group of twelve year olds should just suddenly develop the skills required to make photo-real graphics in between homework and bed time. Yes, this is the equivalent of slapping an Instagram filter on everything, but if that filter allows someone to realise an approximation of the idea that was rattling around in their head, I think that's pretty cool. And if they really get into this stuff, I think they'll start to notice the limitations of these tools and get interested in learning how to do it from scratch so that they can get a result that's even closer to their vision.
I'm aware that a lot of this stuff does get taken pretty seriously and actually sold as entire games, effectively, but even in that context, you're not exactly going to stand out if you're using the same glow-up filter everyone else is. And for the people who really are just making a cool dungeon crawl for their friends to play, being able to just kind of cheat code a baseline level of graphical fidelity seems pretty OK.
I guess my point is, yes, this is a crutch. But it's pretty damn silly to complain about crutches when you're standing in a hospital.