Alien conspiracies to the Star League ghosts returning from beyond the Periphery, the lack of official and/or solid scattered reports that were incomplete or "sketchy" at best? Plus, the Goon "Watch" aka Kommando Seven, was on top of the overwatch. Why they kept quiet and used their contacts from all five realms to bring in orphans to teach them the clan style. Recruited young enough, and add the few "clan" recruits to give them a sense of sibko training. I wouldn't be surprised that the last trip brought back "babies" from a Wolf sibko, young enough to not be trialed yet. I mean, like the very young, 4-5 years olds. Wouldn't be the first time incognito was used. They didn't explain anything until they needed to or wanted to. They came with Warships, but sent them away before the rest of the Sphere found out. Those were kept on Hidden, but when they announced that they were Clan, those same warships jumped to Outreach and controlled EVERYTHING! No Power could persuade them to otherwise to give up that. The Star League factory storehouses, their clan tech and they raising of the orphan children all to show them the Clan way.
Some of the best Units were ready to defend. Why Remus was off limits to everyone. Not even a challenge, just blown out of the sky from an orbiting Warship stationed geo-stationary overhead. If you look at it, they had both Jumpoints covered, and the local Pirate points too, with a single Warship hanging in low orbit as a local waystation/planetary defense. Wrong or suspicious codes, boom happy landing.
TT