I don’t see this as something they would would for fun, it’s not even a feature requested by the request program.
Consider that.
Everything costs money, this isn’t some form of weird check list where they put a box with no new games supporting it. they need a game that will support It and there must be a story around it. It has to be a big title, they want it to sell the platform.
If they want 60+ FPS gaming as part of their next platform then they will start supporting it now.
Eh, how difficult was it to implement this on a technical level? Probably not much. They have a 1440p mode as well. I don't think those features are hard to implement considering the tech that's already in there.