Hmmm, this is more complicated than I thought...
So if I'm following, then we have the following concerns:
* The terminology used to described the indigenous cultures of S/E Asia. (IE Oriental, Asian, etc.)
* The monotizing of different cultures into a generic single culture (one that has samurai, ninjas, Shaolin Monks, and Khans all living together; though I guess it doesn't bother others that a cleric of Apollo, a druid, and a paladin can all be in a classic D&D party).
* The fetishizing of certain elements of the culture (katanas can cut a tree in half)
* The poorly researched or nonsensical elements corrected or purged (wu jen, Korobukuru)
That's a fairly tall order, but not insurmountable. I can see though perhaps why WotC isn't quick to undertake it though.