Yeah i still saw it too. I just guessing, maybe because they're not using any word from "ICO, Cryptocurrency, Bitcoin".
Example this picture
This is what i get from facebook
Advertising PoliciesPolicy
Ads must not promote financial products and services that are frequently associated with misleading or deceptive promotional practices, such as binary options, initial coin offerings, or cryptocurrency.
Examples
“Start binary options trading now and receive a 10-risk free trades bonus!”
“Click here to learn more about our no-risk cryptocurrency that enables instant payments to anyone in the world.”
“New ICO! Buy tokens at a 15% discount NOW!”
“Use your retirement funds to buy Bitcoin!”
As you can see, in the picture they're not using any word like binary options, initial coin offerings, or cryptocurrency. So my opinion they still can pass it if they didnt use any word that listed on advertising policies. Just guessing