As a judge who also magistrates, it’s been my experience that many of the people I see in jail have been arrested on warrants for not only the underlying offense, but for failure to appear after having released on personal recognizance bonds. I believe there’s a better way, but just release on PR bond isn’t it for many offenders.
He advocates for supervised release (barring valid concerns that the offender is a danger to others). So he is not suggesting a catch and release, where the heck did they go? alternative to cash bail.