To be clear, you do mean makes the voters public right? Because the whole idea of this suggestion is precisely to make the votes public. And I do agree that, within hours, there would be models developed to effectively parse the ballots and help detect any discrepancy - something the current centralized operators just can't seem to manage.

The problem is if the people casting the ballots can be identified by third parties. And in this regard, I don't understand what you mean or if that is what you are even talking about.

People casting ballots will be identified by anyone with an AWS account, yes. The location of the vote and the handwritten checkmark are likely enough to identify the voter.