You know- that JC ingredient list is a list of just general ingredients and not specific entities- like food colorings, what their flavors are derived from, etc. For example: JC says not to use their juices if you have an allergy to nuts- they say some of their flavors may be derived from nuts or processed in a facility that processes nuts. So... technically, "nuts" should be on their ingredient list, no?
Their lawyer put it in to cover their ..., no matter how remote the chance of a speck of peanut dust 'contaminating' their product may be.