Yes, but at least with the Japanese woman being used in this context, the vast majority of them are relatively flat-bottomed.  They just are, there's nothing weird, racist or abnormal about it.  Kind of the same way that I was able to point out (successfully) the Japanese tourists I saw in Turkey.  I could pikc them out simply by the way they walked and stood.
There are some things that are unique to people from a mono-cultural country (ie: China, Japan, Greece, Turkey) where there is not a lot of mixing and melting pot ideology going on (ie: Canada, USA, England).  So there you go!  Although I agree with The Envoy, there are exceptions to every rule.