@aras The resolution can be significantly higher, which... in practice reduces fragility and artifacts only a bit. :(
But honestly, I don't think there are any more reasons not to raytrace at least shadows (at least on PC and NVIDIA; I don't know how performance looks like on consoles).
Add ReSTIR DI / PT and you can not only beat the quality by an insane margin, but also have literally every light being a shadow casting light.
@dpwiz @aras TAA + jitter is anyway what many (most? :) ) do even instead of PCF/PCSS (back in my days ESM and flavors did not work other than on specialized cases)