As I wrote in another comment we had to repeat local state elections because of problems in the paper process - including shortages of ballot papers, unusually long queues to vote, ballots being delivered to the wrong locations, and in some cases voters being turned away.

While I’m a proponent of the paper process let’s not pretend it immediately means you can be confident about the election

Oh, you absolutely can and it worked in your state. There were problems with the process and you had to repeat the election for people to be confident. People can understand all problems of the above.

With some abstract math and computers? Any real or imaginary issues are incomprehensible to most of the voters and concerns can be easily shooed away.