First, you're the one making an affirmative statement about what FB should be doing. The burden of proof is on you.
Second, I've posted the (admittedly circumstantial) evidence in direct reply to you multiple times. You've not engaged with it in any way, but just repeated your talking point.
You don't appear to be acting in good faith in this discussion. Your need to put some effort into this, and actually reply to what people write.