But nobody is saying that any of that should be OUT of the book (Well, except maybe the mecha

)
We're saying HAVE all the cool stuff, but don't half-ass it and make it all one big nation/culture. Spread the stuff out. HAVE the cool Japanese stuff - and Clavis, I don't mean everything has to be gritty and realistic, it can be fantasized - but have it in the vaguely Japanese-esque area. Have the cool Indian stuff, but don't have it casually strolling around in that vaguely Japanese-esque area.
Again, I'm not saying "NO COOL STUFF, GRITTY AND REALISM ONLY." I'm saying,
don't half-ass it. Spread the stuff out. Which sounds more fun - one place with every eastern trope in existance just hanging out, or having those tropes
battle each other.
Granted, I would be lowering my eyebrows if things got TOO fantastic, like throwing in mechas and samurai who cut them in half with one blow

. But it's a fantasy game, so fantasy is...well, pretty much required. While I wasn't that big of a fan of much of the Oriental Adventures book, I still had a nice place in my heart for the quite unrealistic Iaijutsu Master.