The only part of Asia I can really speak intelligently about is Taiwan, but among the Taiwanese martial arts teachers/practitioners/historians, they would not know anything about either Ed Parker or the Tracy brothers.
I suspect that is a result of two things; those teachers and their arts are basically an American deal and they are kind of an older American deal.If I remember right, at least in California, where I am from, the Tracy Brothers day in the sun in the mid 1970s ? And Ed Parkers peak of fame about that same time? Well if true—that has been twenty years back now.
I mention the age factor because the one American martial arts deal that some Taiwanese martial artists are familiar with is the UFC. But that is quite a bit newer than Mr. Parker/Tracy Brothers.
Take care,
Brian