While this sounds like it allowed remote voting, it's interesting that some places (e.g. The Netherlands) went back to 100% paper instead of voting machines. That causes counting to take quite some time, with estimates/interim counts in between. I don't understand why voting machines can't just print your vote on a piece of paper behind a plastic window for you to see while also recoding the vote in a database. That…
They absolutely can. Brazil uses electronic voting machines and that exact method was proposed to increase the trustworthiness of the system. We'd get the best of both worlds: fast vote counting and an auditable paper trail that serves as the ultimate truth.
Supreme court declared it unconstitutional using total bullshit arguments ranging from "it compromises voting secrecy" to "it's hard to implement", thereby fueling concerns that the voting machines are compromised.