I thought the issue was that foreign actors were able to use Facebook to push for their candidate of choice, not that Trump was "unapproved" (why do you use quotes? that phrase doesn't appear anywhere in the comment you're responding to).
Simultaneously, there were tens of thousands of foreign nationals demonstrating in the streets of major cities all over the country, and this is "approved." This is why I'm left wondering: what are we after?
First it's Russia and now it's Cambridge Analytica. Unless you can trace CA's business activities to foreign hires or somehow devaluing the influence of the former for the latter, even though the Russian angle was what was being pushed around for a good while as The Reason Trump became so favoured (rather than actual failures of the Democratic party!), methinks it's just the alphabet agencies and co. looking for excuses.