I want to give them the benefit of the doubt and say perhaps it’s a deep freezer that is only opened occasionally, and I guess is pretty well sealed as long as it’s closed.
The kitchen appears to have one of those built-in fridges that matches the cabinets:
Yes, putting an electrical appliance in the bathroom is weirder than putting an appliance that requires both power and plumbing in the room that always has both power and plumbing.