So... let's say I know an ambulance responded to your house two weeks ago, in the middle of the night, and I want to know why (for... reasons...). I can't go as the EMS agency, or the hospital, as HIPAA prevents them from releasing any information. However... If I know a cop was there, then I can leverage the fact that the video his chest recorded is a matter of public record and find out for myself.

Wouldn't you want that video redacted in that case? There are plenty of other scenarios I can think of where redaction is very appropriate.