This sounds like heel-dragging to me, or they're trying to do it under Windows or something: https://www.washingtonpost.com/news/post-nation/wp/2016/05/17/more-than-30-states-offer-online-voting-but-experts-warn-it-isnt-secure/
It seems simple to me, you use firewalls and only make the results writeable by the process that should be writing to it, probably nothing needs to have read access in the short term. As far as security after the election, mount the servers in a Brinks truck or something, it just sounds like a ludicrous excuse. Something like: for each election the town government mails you a random number that's your key to vote that election. You go to a website and put in your town, name, SSN, and the key. If somebody steals the mail they won't have your SSN. If Russian hackers or whoever tries to impersonate you online they won't have the key. It's bringing those 2 pieces of information plus your name and town together that makes it secure. Just guessing. Did I overlook anything? -- Credit is the root of all evil. - AB1JX