Facebook is also under an FTC compliance order. I'll assume that the FTC had no issue with bypassing Safari settings as they've not made any issue of Facebook 9and others) using the same or similar exploit. The FTC's fine was due to Google's statement on their applicable privacy explanations page that if Safari users already had settings to discard cookies then no further action was needed. That wasn't correct. Seemingly the FTC was not too concerned with the actual bypassing of user settings as that's not what the fine was for.
In essence, bypass all you want but don't tell users flawed instructions on how to avoid it. At least that's the way I see it.
Was not aware Facebook was under a similar FTC order. Good to know. I should have added "as far as I know".
Has anyone published an article proving Facebook is exploiting Safari the same way Google did? My take way was that it was the combination of breaking the order and then lying about how to disable tracking. I can't imagine the FTC would give Facebook a free-pass.