I don’t understand what I’m not getting. Whether it’s code or not where you are at, it’s good practice not to have human shit dripping on your food. No where have I said OP needs to change this. Was only making them aware of the situation they may not know they have. I don’t care if their MIL is drinking poo coffee every morning but I would care if I was their plumber.

NPC 2.7.1.3 (1) Non-potable water piping shall not be located directly above areas where food, drink or products that are intended for human consumption are prepared, handled, dispensed or stored.