It's not at all hard to think of at least a few countries whose leadership would happily engage them for this.

They'd be the one's paying money for Facebook to do "targeted dating influenced by specific factors". ie genetics.

Depending upon the verification/validation of results they want, it's probably not an 18 year wait. Initial data would be what... school grades entered into centralised system (guessing)? Higher year level grades, aptitude tests, uni/college (etc) would be follow on ones down the track.

Anyway, the point doesn't seem far fetched at all. And Facebook + medical data would be right there. :/