Known people have baggage. And Terran needs to shed a lot of baggage in record time.
Plus, as a player, I hate seeing the same players become rulers all the time. Yeah, Terran has had some crappy rulers. But I don't regret it a bit: it's meant that a ton of players who've never gotten to have a rulership anywhere else have had a chance to experience it.
For an RP perspective, Terran is a realm with an extremely powerful upper-level bureaucracy. Terran only works effectively with a ruler who can either serve as a moral center for the realm but who has no particular political interests, or else a ruler who is of titanic strength, will, and political acumen and can break the will of the elites.
I know of only 2 or 3 nobles who might be able to achieve the latter, so we roll with the former.
Known, does not equal been ruler already. Ex-rulers are known people, but that doesn't mean that only ex-rulers are known. As to what you think Terran needs, I don't know the internal things that some pointless figurehead is really going to help out Terran. As to your second, Marco could be that person but I don't have the time to make that happen. Also Marco is more of semi-known, he knows people minorly but generally always having good relations.
