Again, you are assuming everyone is always /war. People choose to utilize other subs for various reasons. While /war is best in terms of DMG and tanking it is not always what is /sub'd at the time. So when the person is not /war they use the tactics they have available. This leads to SE updating things like Sange and Ranged Attack Delay (on roadmap for Autumn 2012).

Personally I think Sange should be like Quickdraw instead of having to use the /ja and then /ra.