Cute, but apples and oranges
Davis won reelection by a large margin, so errors in the count were a moot point.
This time around, the vote will be fragmented, and the "winner" will be decided by a small margin, potentially a fraction of a percent. Counting errors will be statistically significant, and the use of voting machines known to produce inaccurate results is guaranteed to trigger challenges and demands for a recount, perhaps even a revote. It would be foolish to proceed under those conditions.