Comment by akersten

As with all horribly-ill-defined laws, it depends how the judge is feeling that day and their interpretation of the accused's intent. If the case can be made that the images arouse inappropriate gratification, they can be deemed illegal.

If that sounds absurd - most laws are like that. For better or worse, there's a human who interprets the law, not a computer. It's unfortunate Apple is choosing to elect a computer as the judge here, for exactly concerns like yours.