Heihachi's parry level 1, the games trump card

Ok so Heihachi's neutral circle move, is a parry of sorts. If he is hit when he uses it then he gains AP and stuns the opponent. I have a friend who repeatedly uses this and it is completely over-powered (in my opinion). It also is a very fast move, coming out on something like frame 2 (don't quote me on that) so it can be used in between being combo'd. This allows him to get out of combos, avoid getting hit, set up for combos, gain AP and so much more. Also when he parries a melee attack up close it puts them into crumple state so he can immediately lvl 1 and it is unavoidable. Thoughts?