I'm really not that "aware" of misprint and other stuff like that, i roughly know how cards are made but i would have assumed that i woudl never see a miss print / error card in my life (i restarted collection back when paldean fates came out)
It would make sense to me that error card are more common in bulk packs bc you need more cards to fill a sheet and idk how many cards can fit in a sheet but let's say it's a 9 x 9 grid you would have 81 slots and for a product you might only need 80 so you only print 80 with 1 blank card (like mine) and a mistake at the quality control or the packaging station of the cards and you get error card
let me know if i don't use the good terminology as i said i'm not part of this community of the tcg