Because the current Japanese government screwed its COVID-19 response.
Amabie-san Present Campaign Postponement
The “Amabie-san” Present Campaign Scheduled for release on January 16th 2021, will be postponed in light of the current situation of the new wave of COVID-19 infections.
The official websites for the Official Card Game and Rush Duels will make an announcement while keeping track of the situation.
Thank you for understanding.