And since Starship has yet to reach orbit, one could say it's to early say.
The lower payload requirements mean Starship HLS requires fewer fuel replenishment launches, so an apples to apples comparison makes Starship slightly less risky, especially as the other landers rely on launchers far less developed than Starship.
If anything so far its a purely political move so NASA can tell congress 'sure we do sort of still pretend to have multiple landers'.