Did I miss the argument for why this approach is superior to paper ballots? Is it because there’s a QR code, and a human-readable printout of your choices that

Did I miss the argument for why this approach is superior to paper ballots? Is it because there’s a QR code, and a human-readable printout of your choices that you take home? If so, doesn’t this introduce the danger of someone standing outside the voting place intimidating people to show their results?