Tachi, Guns. are all fake shuris.
Wiz, 400% cdmg to support razor wind + ice glyph(-def with out extra time)
Time to fox pounce!
Please don't ever compare two of the most fun and real classes that take some thought and play in a game where there is already so little needed to the classes that play themselves (Shuriken, Lancer, and Holy Sword; I'll just barely give Ravager a pass these days which should let you know what I think about you calling the Ravager weak too).
Tachi is many times better than Shuriken in both skills of the class, play of the class, and even theme (Tachi did the ninja theme thingy first AND better; the Shuriken only has it's brokeness ruining any potential unique and fun factor, much like the Ravager of old which had a kit with potential made boring by overwhelming strength making the game even more overly easy than it already is).
As for Wizard, no. That actually makes no sense. I know the theme these days is to just throw Shuriken subclass on everything and effectively make yourself a weaker Shuriken that uses you "other" class skills between your tornados, but it still makes no sense to make this a special mention because a Shuriken main is going to do a lot more damage than a Wizard just because it has a 400% crit damage cap (which is also a strain on the class to begin with) so your point doesn't even make sense anyway. A Shuriken is a stronger Shuriken than a Wizard with it as a subclass.