I agree, no one is whining about it.
Interviewer: "What do you think about the mixed reviews"
Kojima: *Runs away so that people will stop telling him to shut up*
Pretty much every game developer would have responded without weirdly bringing nationality into it. Every game developer has responded to questions about mixed or even negative reviews. Most of them respond in a way that acknowledges the faults in their games, others simply answer with the pride that they and their team have in the final product. Any time a developer turns it into some kind of strange ad hominem about the reviewers not appreciating their game for whatever reason, I roll my eyes. As most people do.
The funny thing is that you probably think I'm one of those ohh so bad and scawy "Kojima haters." But the reality is that expressing my opinion that his shitty response to criticism was, indeed, shitty, is probably the most I've ever spoken about the man in my life. I frankly don't understand how anyone could fail to find his attitude laughable. But it doesn't mean I hate the man, or that I spend undue effort trying to bring him down in some weird, conspiratorial manner.
No one's telling him to shut up. But he's definitely coming off as whiny. People ask questions like this all the time, and 99% of the time people manage to come off as respectable. Sometimes people act like arrogant shitters, and that's okay.