No it wasn't a mechanics issue. It wasn't that I thought the concept sucked either as I loved the concept. It wasn't really even that the martial arts controls lacked any defensive moves either. Hell it wasn't even the dated graphics, poor voice acting, save points, third person view allowing you to look around corners, cover system that made it overly easy, bosses that had moments of being impervious to damage or that it froze up a couple times.
The lack of any functional patch coming, the game freezing, poor hand to hand combat system and some graphics issues I figured it was best to return it while I could.
I could of played on in hopes that I could ignore the problems but I learned my lesson with Borderlands that if a patch isn't released immediately then the odds are poor that one will eventually come out that actually does anything.