Very much agree with this. As far as Akihiko goes, Moke really defines the way he should be played in P4A.
Also, I think part of the reasoning for nerfing Duck is the addition of that new uppercut-looking move that seems to be part of his BnB now. It can be see here at around 33 seconds. http://www.youtube.com/watch?v=VQzeo_caZ2c#t=30
You can do it straight out of Duck and it seems to move Akihiko forward. Unlike Corkscrew, it appears you can go into a blockstring/combo from a successful hit so it makes sense to me that you have to make his Duck a bit slower.. Now I'm wondering if it's an FC starter.