FOMO shouldn't just be viewed as desperate and sudden thing. Some investors (especially in Japan where some are more tech-savvy) are starting to realise that Bitcoin has a big future, as an asset or a currency or for wider applications or really anything else, and they're flowing in knowing that this will be a low price in a few years' time.
lets not forget that Japan was the land of Mt Gox and they took a big hit after the big scam and they were out of the game for a long time. and now they are coming back, with a lot more faith and surprisingly with an open arms.
and we won't probably see their effect this soon but it is there and there will be a solid rise in real demand for bitcoin as new people with new money come in.
and lets not forget that Japan will soon host the Olympics games and that will be a huge publicity to the whole world as people go there with their foreign money and "Bitcoin is accepted here" signs will be everywhere and easy for them to just use bitcoin instead of exchanging their money.
The Olympic games can be a great opportunity for bitcoin to gain attention since people all over the world will go to japan to see the games and that will give great publicity to bitcoin as people try to pay for souvenirs and all kind of stuff you can buy at the Olympic games.