In GDPR terms, the point they're making is that people who own Flock hardware are the Data Controllers, and Flock act only as Data Processors. I'm not sure how (whether?) those roles map to the CCPA, and whether any court of law would agree with them is up for discussion, but at least the concept is not completely absurd.
Of course, the word "owner" is almost rage baiting on their part.
Except under Flock's own contracts and their own website, Flock are the people who own Flock hardware. And this correlates with my understanding from when I was an employee.