There's always an air of disdain about those "others" when these things come up. Get over it is son. Get over the fact that hey, short of a few action beat em ups, Japanese developers seemingly lack the gravitas to design games people care about. Fans of Japanese games can't see the trees through the smoke and fire.
If Kojima is indeed making an open world game he isn't looking towards contemporary Japanese game philosophy to do it.
I have played and enjoyed superb Japanese Action games(Bayonetta, DMC4, EL shaddai), Platformers (Mario, El Shaddai), RPGs (Legend of Zelda), JRPGs (FFXIII and FFXIII2, The Last Story), turn based Strategy RPGs (Valkyria CHronicles, Disgaea 4), SHooters on steroids (Vanquish, Child of Eden, SHadows of the Damned, RE5 ), Survival Horror (SIREN), Puzzlers (Catherine), Professor Layton ......etc etc etc right in this gen.
I don't even remember some of them, there are so many. Just started enjoying Ys on my PSVita.
WHat Beat'em ups only? This is the strange phenomena I was talking about. Japan is delivering on every front, but its not selling well as it doesn't match the major audience, the american audience's sensibilities. But that does not mean they do not know how to make a good game. THat does not mean the rest fo the world doesn't like their games.
Resistance 3 failed commercially, but its a great game nonetheless. Saying insomniac doesn't know good game design is plain wrong.
Now, if u may excuse me, I need to watch Snake make a comeback here !