I mean, can you tell me how an L5R game revolving around peace would work? Players actually cooperating cross-faction to build up cities, advance technology, feed the hungry and actually work towards Rokugan prospering? Do you really think any players would actually engage in those goals?
If only there were win conditions other than military, ones about gaining honor or enlightenment or something like that. Even a dishonor player can easily be non militant, if they don't go attacking and killing their political opponents. A peaceful game can easily be played, and conflict can still be found in peace.