It is like having a 7 frame Izuna punish throw. 72 damage is pretty damn good. Does the guide say 12 frames? All I know is that the in game frame counter reads 7. Just saying.
Decided to play some DOA lately. Saw this. Awesome find. Doesn't entirely make sense on paper, but works. Gives Hayate an edge I was looking for. Indeed is 7 frames.
I'm seeing this grab at 7 frames on whiff, hit and in testing. I think people may have seen 12 because if you even so much as come close to touching you get Raijin (thus 12).