Originally Posted by TFL Replica
I regard DLSS as a better upscaling option rather than a better/faster AA solution. Monitors are generally terrible at displaying content at non-native resolutions (and "regular" GPU scaling is barely any better). I welcome any progress in this field, but it would be nice if game developers could add an option for nearest neighbor 1080p->4k upscaling. It could be architecture-agnostic and thus available to everyone instead of just Nvidia Turing users.
You could replace the DX library as many graphics enhancing and modifying tools do and then upscale with any scaler you want.
Game devs don't care to add "fancy" features for edge use cases so it's up to modders as always. Would be stupid simple to do on GPU driver but they also always seem to have hands full of something else.
As UltraMega said, AI AA for a fixed benchmark is a best case scenario, period. Yet on top of that they had to resort to using the worst TAA, well the worst any AA, they could for comparison.