Great question — organizations decide how to handle reviews internally. So the answer to your question on “review all” versus “automatically submit” is a, perhaps unsatisfying, but honest: it depends. We provide a guide [1] to help organizations formulate their own policies. And we're currently working on a content moderation tool that focuses on helping organizations operationally handle problematic content and considers the wellness and resiliency of reviewers.
[1] https://www.thorn.org/sound-practices-guide-stopping-child-a...