The paper rolls used back then were not 2 part, so no voter verification, and they were haphazardly implemented.

Your objections do not alter or reduce the increased security and error correcting offered by such a system. Paper rolls are not hard to audit, they are instead, time consuming to audit. Initial auditing can be sped up with machine reading, and subsequently verified by human audits. The voter verification allows the roll to act as the final arbiter for any error conditions.