So in an effort to find interesting tangents to this topic, I observe this: FS intrasystem jumps are, apparently, able to navigate through the entire solar system with ease. In the densest parts of globular clusters, the average distance between stars is about the same distance; so you should be able to jump continuously between hundreds or thousands of stars, as opposed to a single system. Discuss.
I actually strongly considered doing this in a campaign once, where a Knossos would have taken you to a glob.
Why would they keep it secret though? Even if its a slow communication they can use it for morale and information transfer.
You're assuming that the news from Earth is good. It's entirely possible there was some kind of societal collapse and that's not going to help.
There may also have been some kind of security concerns about communicating with Earth and the possibility of the Shivans detecting it and learning Earth's relative location and choosing to slowboat and destroy it anyways. After the collapse of the node to Earth, the Shivans were still powerful enough that the GTA thought they might win without the
Lucifer.
If they were pursuing a "Liferaft Earth" policy they might have deliberately avoided communicating with Earth. Earth, in turn, having heard nothing since the node collapse, might have deliberately gone dark in the belief that the GTA and PVE lost and they're the only ones left.
