The rollout of kinship networks happened on a fairly low-key basis.
It was as if the Terrans, Rubarthans, mechers and fleeters still could not put all of their faith in the testing and examinations. They continued to harbor excessive paranoia towards the potential of abuse and only sparingly connected eligible troops first.
Hardly any mention of the Terran Network, the Rubarthan Network and most notably the Human War Network could be found on the galactic net.
Their existence was not exactly a secret to the people in the know, but they all upheld an implicit agreement not to publicize their new tools all that much.
If it turned out that their fears were justified, then they could always remove any mention of their kinship networks and pretend that nothing had happened.