Because we know how people in the server are. If things continue, we're going to have a bunch of Marduks shooting LIS,while the Rogue-Outcast alliance (That shouldn't even be there by the orange treaty) Merrily laugh about how wonderful it is to have the Blue Glowies on their side....despite the proud history of Rogues shooting Nomads.
Realistically, the Rogues would turn and start shooting the Noms alongside the Navy, and they most certainly would not allow Outcast caps inside of their territory, but that's already happening.
Don't let it get worse.
Realistically speaking, they signed up to siege the base.That means they will bring ships to it. Otherwise, there was no need to sign up for it. In my months on the forum, I have seen -Zero- K'hara RP. I've seen Wild, and Vagrants and Infected, but actual Nomads? Nothing. Are you really going to pretend that unless it's called for by the community/admins it's actually going to lead to any sort of RP other than: -This One Un-Veils itself before the 'Others' and begins to destroy the Human installation-.
To me, it feels like the faction is a very complicated 'Get out of RP to shoot free' Ticket,And it doesn't help when the Oracles, these great prophets trying to bring understanding of the Nomads to Sirius, throw in a total two lines of RP, and thereby including K'hara on a siege....for a base literally infront of Manhattan.