Steven Universe - Do you watch in order, right?

You can make this scene out of almost any franchise:

Connie: Have you been watching watching Game of Thrones yet?!
Steven: Yeah, it's really great! I'm in the middle. But I'm confused…They keep talking about this Ned Stark guy, am I supposed to know who he is?
Connie: Ned Stark? But he's been in episode 1…You are watching them in order, right?
Steven: There's an order?!! Aww man! I've just started watching the scene with the super cool dragon!
Connie: …..

…this is hardly fair…you AREN'T supposed to know who yellow diamond is at that point. Or this point at the time of writing.

All we know about homeworld is the vague implications of miltiarism and imperialism that is more than willing to destroy human and even gem lives.