Effective, well-run companies do not do this. Not because they are necessarily a nice and cheery big happy family, but because this is a stupid use of supervisors' time.
Who says there is significant supervisor's time required? The AI monitors and provides a report, and the supervisor then has to decide to fight the recommendation with their supervisor, and no doubt take a hit on the report about them, or give in and have the joint meeting with HR. lose-lose-lose, shareholder-value, yada-yada-yada.