This is classic Japan “don’t harm public morals” grand standing. Japanese culture puts on a good mask to show everyone else how good and clean they are, but go take a look at their fan mangas and old video games and that mask doesn’t just come off, it flings itself off like a pinball from the plunger runway.
I like Japan, but they really gotta get a grip on some stuff. Particularly this “public morals” facade, their awful defamation laws, their work culture, and their insistence on allowing Japanese businesses to attempt to apply Japanese laws in jurisdictions and countries that the laws do not and can not apply.