In any event, I don't see any real proof of fraud. My motto in these matters is to never chalk something up to evil when it can easily be explained by incompetence. The votes should have all been counted the first time, and a lot of people need to be fired for not having done so.
Setting aside for a moment the issue of whether or not there are enough irregularities to put the result in doubt, and also the issue of whether or not a revote is the appropriate remedy--
--it doesn't matter whether fraud or incompetence is to blame. All that matters is whether the irregularities exist.