Well, there is nothing to disagree with in that statement. But personally, I'm surprised that the market sees holding the yen as a safer bet than holding the US$. Long term, the US$ would always seem to be a safer haven, given geopolitical uncertainly, and, maybe more importantly, Japan's demographic quicksand. And Japan's debt-to-GDP is another ticking time bomb.
So for investors or currency traders to take all of that into consideration and still think, "I'll take the yen over the dollar", is really astonishing. But maybe people are just making short-term bets based on the recent craziness. I don't know enough about currency trading. Well, I don't know anything about it. I would just think Japan's risks don't go away, even if America is having an unusual political freak-out right now.