There are numerous other behaviors that IIUC are illegal under U.S. federal law but are not proscribed by California law, including: aircraft hijacking, carjacking, credit card fraud, and possession of destructive devices such as missiles and poison-gas weapons.
And yet I don't hear those same news sources referring to carjacking, etc. as being legal in California.
The cynic in my suspects that those news organizations are intentionally choosing language to push their own agendas, but maybe I'm totally missing something here.