It's great they are making strides into performance and graphics but their biggest issue is server related. Once big battles happen they slow down the servers by 10x and it takes 10 seconds per 1 frame essentially.
Well, that's the thing with AMD's FidelityFX stuff. Any developer can use it with relative ease. If they think it is worth implementing, they can add it.
If you want your favourite game to add it, post something about it to their social media people etc. TBH, I haven't seen a game yet where AMD's CAS has been implemented badly.