For what it’s worth, I purchased from one of these Amazon stores every day for over a year. After leaving the store, it would typically take 2+ hours before my purchases were registered in the Amazon app. I agree that there probably was a large degree of automation but based on how the store worked, there didn’t need to be an army of “real time” reviewers for humans to be involved in each individual purchase… it’s totally plausible based on what I experienced that Amazon did have an army of people involved in the standard purchase path.