Aside from security and verification issues, a vote can very easily be devalued. When we vote now, we always have to go to a physical location. Some effort is required. It is not a survey.
I always give my students the following test. I tell them that a government is elected on October 1 with a huge majority, that there is a dramatic event three weeks later and the government's popularity plunges to 20% in the polls. I then ask them if the government should step down. My students say yes but I tell them no because a poll is not a vote. When people vote, they go somewhere physically and can't change their minds until the next election.
So there is always a risk. On one hand, there is a desire to make voting easier and to reach out to people, but I'm not sure how effective that would be. Isn't there a risk that the vote itself would be devalued?