I can understand it to be honest. MSAA is better image quality at the cost of performance, while future solutions such as DLSS 2.0 are a matter of better image quality and better performance at the same time, so MSAA doesn’t make that much sense going forward.
As for TAA blurriness, I found that it can be more than well compensated by sharpening. Maybe not on the same level as MSAA but still more than enough to ship a triple A game with. It makes me all the more confused that TAA sharpening is still not exposed as a first class option, but remains an obscure console variable.
Just use r.Tonemapper.Sharpen and find the right value which balances the sharpness of TAA and introduction of aliasing. I personally have very hard time telling TAA with r.Tonemapper.Sharpen at 2 from MSAA on 2560x1440 monitor.