A Japanese blogger, The diary of International debates blames a politician Hiranuma for supporting the Ad in WaPo. Just as when Hiranuma refused to support the Prime Minister's plans to privatize Japan Post and he was not endorsed by the Liberal Democratic Party in the 11 September 2005 election" wiki, he seems to be a man who ends up with defeated over trifle matters. He is not an evil man: he means well, but that makes him more unmanageable. Without the Ad in question, everything was supposed to turn out all right.
I must agree.
Regretably it seems some of Japanese nationalists are just content with themselves, not knowing the consequences of their actions on the international stage. Reading some of the comment sections on some Japanese blogs, I must admit some of them are morons.