I agree about the risk of client-side vulnerabilities. Another state-level actor could easily abuse this to influence an election.
On the counting side though, I don't fully agree. Paper voting sees some enormous mistakes. Whether they are intentional or not, but it has happened before where an entire town's votes for a candidate missed a zero. No election observers or people sent from either party noticed it until a volunteer pointed it out. Electronic voting isn't going to make such mistakes and I believe that if the process is handled well, then the secrecy of the vote shouldn't be an issue from the server side.
But again, there's nothing you can do about the client side attack vector.
On the counting side though, I don't fully agree. Paper voting sees some enormous mistakes. Whether they are intentional or not, but it has happened before where an entire town's votes for a candidate missed a zero. No election observers or people sent from either party noticed it until a volunteer pointed it out. Electronic voting isn't going to make such mistakes and I believe that if the process is handled well, then the secrecy of the vote shouldn't be an issue from the server side.
But again, there's nothing you can do about the client side attack vector.