Maybe some of the black memorabilia cards were short printed? For cards #/125, there are a lot that have not appeared on COMC. I checked PSA, and there are no graded Ozzie black memorabilia cards. For charcoal, there are cards with and without the serial number, so those aren't consistent either. COMC lists 77 cards as passing through their system, TCDB lists 81. I'm guessing there was never a solid checklist since it appears the entire set was not paralleled.
And yeah, that misalignment of the text on the back is odd. I don't think it is an auto missing the sticker because the text on the back would be different.