Or it could be that she is experienced with both software and law, and that her assessment is different than yours.

> Kate’s passion for open source began in law school, under the tutelage of Eben Moglen, long-time attorney for the Free Software Foundation, founder of the Software Freedom Law Center, and author of the GPL 3. She interned at the Electronic Frontier Foundation and helped write the first complaint against the NSA for warrantless wiretapping.

> At VMware and ServiceNow, she dedicated her time to designing, building, and testing internal compliance tools in collaboration with their respective internal tools teams. She is no stranger to writing specs, creating wireframes, and massive amounts of QA. So much so, that Kate and her husband, Steve Downing, co-founded Critterdom LLC, a software company whose Open Sorcerer product substantially cuts down the time it takes to manually review source code for licenses and create a customer-facing disclosure of that source code.

https://katedowninglaw.com/about/

Whether or not other countries give you the right to enforce your copyright even if you haven't registered it with the government is not relevant for a class action lawsuit filed in the US.