They should lose. As I said in another comment, SCOTUS just ruled that APIs weren't copyrightable, and there's a HUGE parallel with Microsoft and Sun Microsystems over Java. In the end, Sun settled for Microsoft to stop saying "Java compatible" and $20 million. The community on the other hand got OpenJDK four years later.

Just do it. Fuck the lawyers. When you win, you toss some cash and they'll ya for it.

https://www.cnet.com/tech/tech-industry/sun-microsoft-settle...