Of course it's important that enough people check their ballot and say, "hey this isn't what I meant" it triggers a formal audit. Not just letting those 1000 have a redo and chalk it up to human error.
Sure, but 1000 is just 1 in 3000 voters. In practice it's going to be way more than that, probably 2 or 3 in 10. Thats hundreds of thousands of voters, many of whom are going to be punctilious people. Of all the suggested fuckery methods, this would be caught the fastest IMO.