Yes, that's the only one they upheld. But it doesn't say that Apple can't still charge a fee for any users that come from the iOS app or otherwise use the iOS a

Yes, that's the only one they upheld. But it doesn't say that Apple can't still charge a fee for any users that come from the iOS app or otherwise use the iOS app (i.e. this doesn't mean Apple can never implement iOS licensing fees on a per-user basis), so they might still charge 27% of sales initiated/driven by their product, iOS.