Actually not correct what you sent most of the ideas on ferrets people post alone have no real science behind them such as many people often make up the claim that eating raw animals is safer on the grounds it's like what they do in natural but if you apply real logic that would not make sense if a ferret hunts something for example a snake it would be in theory warm when they eat it meaning it's not like raw animal overall.
A lot of wild animals as well contain dangerous things to ferrets for example a lot of rabbits if a ferret eats one can put one into serious danger since many of rabbits have things like worms or other things in them meaning if a ferret eats one from the cold .
Another mistake this person made ferret passes waste from food or drinks very fast meaning if they eat something now it will out their body around 95% of it within like 20 minutes or so.
A Ferret is designed to eat many things such as they even eat crocodiles