[Someone]

I don’t see why they would have to embed Apple’s font in their app.

What’s at stake, IMO, more likely is that they created a derived work from Apple’s emoji, while Apple doesn’t approve of that.

(I won’t make any claim here w.r.t. whether that is or should be forbidden)

[aaomidi]

The problem here is that generally this is decide by courts, not by apple.

This is basically yet another piece of evidence of a monopoly. Apple acting as the judge, jury, and executioner regarding what it thinks is “it’s rights”