No, it just means they were ignorant enough about the technology to allow Mozilla to do it this way - for now. Also, Mozilla gets to say now that "look, we're implementing DRM, but it's not so bad".
However, once the content owners see how useless this method is (they all are, but this in particular), they will demand heavily proprietary closed source down to the metal software to protect their content. And since Mozilla has "already" kind of agreed to do this, they'll have no choice but to implement that much worse version of DRM.
However, once the content owners see how useless this method is (they all are, but this in particular), they will demand heavily proprietary closed source down to the metal software to protect their content. And since Mozilla has "already" kind of agreed to do this, they'll have no choice but to implement that much worse version of DRM.