IANAL. IANA American. However, my understanding is that: copyrights are decided in federal courts. This decision does not establish any precedent, although of course people in other trials may reference it as a useful example of something clearly argued. If appealed, it goes to the 9th circuit, which covers a few states including California. If that circuit makes a firm ruling on the copyrightability of the SSO of APIs, then that is precedent-setting for all lower courts within the 9th circuit area. Courts in other areas are not bound by it, but may of view it as a useful example. If further appealed to SCOTUS, then any decision there binds the entire country.