I have been very consistent that voting should be user friendly for all Americans, and not an obstacle course or standardized test.
White, Black, Hispanic, old, young, college educated, high school drop out, healthy, disabled, -- people make minor mistakes on mail in ballots -- that ought not be consequential to having the voice heard.
The GOP effort is a calculated one. They know from prior elections, that more Democrats use mail in ballots than Republicans. Hence, the calculated effort to snuff out as many mail in ballots as possible, for ticky tack mistakes.