There are two issues with that theory.
Some of the undervote is absolutely intentional. Other Florida counties had an undervote of .75% to 1%.
The other issue with that theory is the nearly equal distribution of undervote between Scott and Nelson.
Scott receive 10K less than DeSantis and Nelson received 10K less than Gillum.
I can’t figure why those numbers would be so consistent, other than some DeSantis voters missed the box too.
As for the other counties, I actually think that supports my thesis. If the average difference is .5% and the next highest difference is .75-1% out of 67 counties, then 3.5% is more than two standard deviations.
Nevertheless, good point about the 10,000 vote difference. I misunderstood that point in your earlier comment.
It’s really quite weird that the overall vote could 69% to 31% but the “undervote” 50/50. But yes, it’s hard to “allocate” the undervote any other way in that case.
Someone posted a picture that was deleted, but the 2018 Broward ballot is nearly identical in layout and design to ballots in my county and state where there was no ‘confusion’.