You're also missing a major part, donorship. These picks aren't incompetence as it looks at first glance. They're deliberately picked for regulatory capture. They're going to burn it down from three inside.
Look at Dr. Oz. He got picked because of his wife's family, the Asplundhs. They're going to fuck up healthcare far worse than you expect.
Hundreds of years, yes. Without issue? Definitely incorrect. It is a statistical certainty that, in the entire course of history, someone somewhere has gotten sick and died from this cooking method.
Pedantry aside, it's all about who's making the stew that matters. A seasoned chef today with the sufficient knowledge of modern food safety practices can keep a stew reliably safe to eat. Some old farmer centuries ago will experience a lot more opportunities for contamination and won't notice until they get the shits.