Never seen this covered in a discussion but it occurred recently to me
All clans got their champion into the core set. These cards are supposed not to rotate out of the game, unless some core 2.0 Netrunner style decisions.
As L5R always relied heavily on the story line unfolding, having the champions in the core sets makes them nearly untouchables story wise, and I have the feeling we will not have any surprise death among their ranks, like in the CCG.
When I discovered the Game of Thrones books I though to myself, this is like Rokugan in European medieval setting and less deaths. So I feel having some characters, quite important ones set aside for nearly any risk of death could compromise the story line.
I understand why FFG wanted to include some important faces in the core set, but an overall mix of unamed characters would have made more sense, as no one is supposed to live forever, especially not in Rokugan.
I wonder what they will do to address the issue, I don't recall hearing anything about that for now