> This reasonably sets a floor

I disagree wrt reasonableness. It’s just too big a leap. There are a lot of crimes, and not many land you on death row.

The observation was that death row represents the highest level of scrutiny, and still had 10% false positives for guilt.

Is there any argument that less-scrutinized cases would have a lower level of false convictions?

Hoo boy, welcome to the history of the United states.