Running a kitchen myself, if whoever was supposed to do the checks didn't follow through and potentially cost the business a good chunk of time/money, too right I'd have a word.
I know this is a mango, so who cares about realism, but the manager did right by pulling perfectionist on not doing the checks properly, which would not only mean what was prepped in that fridge going to the bin, but if there were any inspectors floating around that would be a major slap on the fucking wrist. The only way it could've been played out better would be to pull the perf girl to the side and have a quiet word, not show it off to everybody else, but hey, we need some melodrama I guess?