This is good news for the Bitcoin community and when you think about it, it makes a lot of sense.
Japan has had financial difficulties for decades and their monetary policy has made things worse. I think it was a few months back they instigated "Negative Interest Rates", forcing people (and businesses) to pay to save money. That made things even worse and the financial markets are drying up.
I think a lot of the interest we're seeing in Bitcoin from Japan comes from a citizenship that's fed up with nonsensical monetary policy.
Just my two Yen worth...