Beaujolais Nouevau has become something so common in Japan. There was a great marketing strategy.
People in Japan tend to like something new. They appreciate "new tea of the year" and "new rice of the year."
Also, because of the time differences, shops and restaurants in Japan can sell the wine before in France...
Japanese people liked the fact they could drink it before French people.
I am not sure how good it is. But as long as people are happy, I have nothing to complain about.