He is easy to kill with supers? So is everyone else in the game. I have never once seen his level 2 stopped. The homing on his combat grapple is pretty good if you in range, blocking is the only hope there. From what I have seen most people use the same combo (it's the same with Raiden and Dante). No real comment on his fleece as I see no one use it.
The fleece bothers the crap out of me because it can stop projectiles! It will throw a blast back at you. His level 2 can be stopped. There is just little reason to do so.
I stopped at "Kratos is NOT overpowered"