This is contrary to the universally understood meaning of E2EE (as in, end to end between the two participants in the conversation). I'm not one to blindly take Facebook's PR statements at face value, but if you're making the claim that Facebook is deliberately advertising E2EE while secretly redefining the term to mean non-E2EE, you should have some strong evidence. Those sorts of linguistic gotchas don't work in real life or in a courtroom.