I agree that asymptomatic transmission reduces this pressure, but symptomatic SARS-CoV-2 carriers are often still contagious, and there is more public will to e

I agree that asymptomatic transmission reduces this pressure, but symptomatic SARS-CoV-2 carriers are often still contagious, and there is more public will to enact extreme precautions for more lethal illnesses. So there is still some evolutionary benefit for lower lethality.