I don't follow, because there's a possibility that someone somewhere might create a bad overly-generic error set if they were allowed to stuff details in the pa

I don't follow, because there's a possibility that someone somewhere might create a bad overly-generic error set if they were allowed to stuff details in the payload when those should be reflected in the error "type", it's a good idea to make the vast majority of error reporting bad and overly-generic by eliminating error payloads entirely?