The surprising part of most of these vulnerabilities is they are hardware attacks. I had a talk with someone the other day that said she heard people were hacking votes from iPhones. The over simplification of the topic is doing just as much harm as good.

I don't know any security professional that would tell you physical access isn't equal to the ability to hack a device.

The reality is subversion of people managing processes is of a higher probability that attacks of the machines themselves. It's also not unique to electronic voting, people are always the weak link in security and will always be the weak link.