The samurai aren't part of the Star Army anymore (effective once the new year arrives), so I don't think there's a place for mentioning them in a Star Army article. Clan samurai are considered civilians for Star Army purposes and I don't think they really belong on Star Army ships.
This is kind of strange, since imperial family members have always been entitled a Ketsurui Samurai. I know Hanako's had a bad run with them, but other yojimbo have fulfilled their duties well (there's my Aiko's Rei, there's 5tar's Sumaru, there's Rikou's Masami who is still with her in the background).
Moreover, the
Imperial Guard, while not part of the Star Army, is a wiki approved independent "Enforcement Agency" somehow chartered with the government. And more than just Ketsurui Samurai are a part of it, if what I've seen
@Fred talk about is any indication; I've seen him state that Ketsurui Kotori's "Black Knights" are supposed to be part of this "Imperial Guard," and at least one of them is now a civilian specially appointed to her detail (unless something has changed, I don't read all the posts there in a timely fashion).
I actually agree that such elements don't need to be formally detailed in an article about the Star Army, and further believe there's been a habit of needlessly connecting disparate setting elements in such a fashion. But it strikes me as kind of odd that this regulation
specifically disallows something that hasn't previously been a problem and is still used in-character. The discussion over all that samurai stuff, which I don't want to rehash, made it pretty clear that Fred gets his plot device and that everyone else could keep roleplaying what they signed up for in spite of it.