I think you're a bit too harsh on FXAA and Temporal AA, caffeinade.
I've played plenty of games using these methods; many of them have good image quality, and never once did I feel they looked worse than the same resolution without any AA.
Maybe so, but in their current implementations they are harmful to image quality.
Perceiving a game using the stated methods, to have good image quality is subjective (temporal AA could get better in the future, but FXAA is what it is).
I try to keep an objective perspective on graphics, though of course: I am human and I will falter on occasion.
FXAA is pretty bad for image quality, I am not going to budge on that.
If a developer makes a clear artistic choice to use it (implement it in gameplay, in some fashion) I am willing to forgive its use; as an AA method it is surpassed by SMAA.
Temporal AA is clearly still in its infancy, and does show some promise; I do hope for the best, but given what I can observe now: it is not there yet.