I suspected this!About Yonin:
The US version says that when in front, it grants a bonus to critical hit rate.
The FR version says that when in front, it lowers critical hit rate taken.
I hope the Fr version is actually the good one, as it goes along with the "tanking" stance side. Lowering accuracy and increasing crit hit rate is quite a nonsense, even for SE (at least I hope). That's pretty good for nin/drk, nin/rdm and soloing I'd say.