Steps in the food chain are concentrators for toxins, not filters. Discarding organ meat isn't a given, though I suppose throwing away the liver in a lot of cases would be a solution. It seems like it is a risky play for relatively little gain, but I'm not a food regulator.
It would certainly help if you explained why you feel the need to snark about something you can't really know about. That way the comment might serve as a vehicle for interesting conversation, instead of whatever this is.
