The corrupt count clerks office sends out ballots based on an "estimated" turnout, so they figured that only 7% of the folks in the Republican precinct would vote. I guess they thought they were being generous.
Maybe since 20% statewide had already voted early or absentee, they thought the voters were done.
That's BS. There should be a law everywhere that states it is mandatory to send a ballot for each registered voter. Nothing less.