I'm a person of Chinese descent living in Singapore, and my view is very likely coloured by my being in a relative position of privilege in my country: upper middle class in a majority ethnic Chinese country.
I was probably in my mid-teens when I got my copy of Oriental Adventures. I had already been playing D&D (specifically, 1E/AD&D) for some time and I was also familiar with Unearthed Arcana. So, I saw nothing wrong with the Comeliness attribute or racial ability score penalties and maximums. To me, they were part of D&D as a whole, and not something specifically "exotic" or "oriental".
To me, it was just another sourcebook. I was more interested in investigating the powergaming potential of a kensai/ninja character than whether the korobokuru portrayed the Japanese in an unflattering light. For that matter, I would no more equate the korobokuru with Japanese than I would dwarves with Germans, elves with the French, or halflings with Italians (despite drawing heavily on German, French and Italian cultures and accents to portray dwarves, elves and halflings in my games).
More to the point, it was a sourcebook written by Westerners viewing Eastern cultures through a Western lens. Of course they would get something wrong. Anyway, my teenage self's reaction wasn't to be offended. It was more along the lines of: fancy getting that wrong. You really should have done better research. Heh heh heh.
That said, I would encourage those gamers who feel more strongly about it than I do to actually create material that is more repectful of and more accurately portrays Asian culture. One of the great advantages of this day and age is that you don't need to be a major publishing company to make your creations accessible.
As for me, I'm currently working on a paladin solo campaign and I sincerely hope the Westerners (and the French in particular) don't criticize it for not being respectful of the Twelve Peers of Charlemagne.