But a lot of the academics are affiliated with one political persuasion.
And paper ballots are also unreliable. Stuffing the ballot box and failing to count votes from areas with the 'wrong' kind of voters has been developed to a fine art.
Look at the chronic fraud in Chicago and St. Louis. Look at the ballot boxes found floating in San Francisco Bay after the 2004 election...the ballots never found. We don't have a perfect system, but those who profit from the well known ways to game paper ballots are pushing for the status quo.
My county has used the AVC Edge system, with recording printers for several years. They have run a full audit, comparing the machine totals with the votes recorded by the printers and verified by the voters, with 100% match.
And the paper systems depend on scanner/computer systems to totalize the vote. Get to that and you control the election.
Bottom line: No perfect election, as we're dependent on people. But a lot less real-world opportunity for fraud with a correctly implemented e-vote system.