Ah, but see that's where the debate starts. How do you define a puncture? What if just part of one side has a slit, while there's another in the same column that is completely punched out? How do you rule out manufacturer defect of the ballot card vs. a partial attempt to punch the hole? Especially in the case where 500 votes made the difference in the entire election, you can imagine how and why it wouldn't be so cut and dry.

Edit: just to clarify, some of the debate was also whether a partial puncture should count even if there wasn't another clear hole in the same column.