I mean this is getting a bit silly. Why didn't they just say "Palintir Employee".
So it's a Palantir employee in their free time.
Let's not forget that Peter Thiel is VP at fb. If he wanted Palantir to have an app that went under the scrutiny radar of some fb data protection radar, he would've most probably been able to get that.
Cambridge Analytica's involvement in the 2016 election has been reported since July 2015. Targeting via Facebook has been known since at least 2012 with respect to the Obama campaign, and with the Cruz, Carson, and Trump campaign since early 2016.[0] There's been an ongoing investigation into possible election improprieties, so people have been focussed on all of these areas for years. You don't need a tinfoil hat and some kind of coordinated campaign to explain that it was likely just a matter of time before something like this would hit the headlines. In this case, it appears that it was Wylie coming forward.
[0]: https://en.wikipedia.org/wiki/Cambridge_Analytica#2016_presi...
Didn't hear that he was a Russian American, is it possible that Kogan is one of the academic spies?