I am not sure if people would actually understand this. The electorate needs to be able to trust the system, & for that they need to see that its results are verifiable. The key is trust, not technology. We should run EVMs parallel with manual paper-based count until their effectiveness, reliability, & speed makes its place in our political ecosystem.
But I must say that my understanding of blockchain does not extend to a one-time event. Typically, blockchain keeps complete record of multiple transactions relating to a single thing (whether physical or electronic thing). Complete transparency & traceability establishes authenticity of transactions. It may be applied to, say, property purchase to good effect. But I do not see its value as it applies to voting. Would people want records of their voting available for scrutiny? I don't think so. It could open the way for targeting of individual voters for whatever reason - political ads, information or misinformation, scrutiny of tax records by a government that does not like their political choices, etc....
This may not be such a good idea after all.