ugh...
Should I even? Are you even going to listen? Really...
Fine...I'll try.
ONLY the first Pandaren (Chen in WCIII) had Japanese armor. China refused it - then Blizzard changed him to have Chinese outfit and China was fine with it. Since then, there hasn't been a SINGLE instance of Pandaren in game until now. and in this game - it's ALL chinese, NOT japanese.
Secondly, and more importantly, Q3 covers June-August... MoP wasn't unveiled until late September.