If the nonfree content is presented as an integral part of the interface, such as inline with the article, that's a problem.
It is an "integral part of the interface", so mcu so, it is it's own "thing" in the app, and not part of "in articles". See screenshot (which I can't upload to Commons) here: https://snag.gy/5RpbXZ.jpg It does not just "pull up" Apple Maps, but incorporates in it to the app itself.
Jonatan