That's because I'm only one of five Voltron paladins. [Loki had mentioned that there might be other Keiths, and the multiverse explanation does back that up. Still. Still.]

There's only five parts of Voltron, so there aren't a whole lot of humans who know about them in the first place.

[He cants his head to the side.]

You don't need any kind of pilot, huh?