Well until we get Kagerou the silver ninja and the TP gets updated with silver units tradable for 10K gold and a specific silver unit, we won't see ninja and vampire hunter classes using their own class as CC/AW fodder anytime soon. That and the update patch I guess. Other than that, the devs must really hate rogues to have a lot of the classes use them. I thought I had a lot of rogues, but they are slowly disappearing from my unit pool.