https://news.yahoo.com/north-korean-leader-absence-anniversary-124126970.html
Kim Jong Un a no-show at traditional celebration. People speculate about health issue. #NK #North_Korea
He's basically an absolute dictator. Maybe he just got tired of honoring his grandfather's memory. Or maybe his nation's claim of zero #COVID-19 infections is false. There's really no way to tell, because despite the celebration being a tradition that he embraced, no one is going to force him to continue it, or require "a good reason" for him missing it.
Heck, maybe his #Depends leaked ten minutes before the celebration started and he did not have time to find another pair of pants large enough to fit.
#idle_speculation (Pretty useless, eh? That's the point.)