Did the people get through the NICS check because of errors committed by the reviewers, or because new information was obtained after the approvals? That could stink that they could decide at any time to come get your guns for whatever reason. If it’s mental health, I’d be more understanding. Admittedly I don’t know much about this story.
Will they also review to see if thousands were denied that should not have been? This should not be as easy as simply issuing a retrieval order because they made a mistake. It should be a summons to be able to dispute in court.