It was always going to be visible to someone, even if an election had been ran using BoardVote, as someone has to hold the private key to decrypt the votes. The idea is that only a limited number, but more than one, i.e. the committee members, can see it to make sure one person can't just announce whatever result s/he want. It was commented that a number of candidates would prefer for it not to be a public vote.
Indeed. The important thing is that none of the candidates knows who voted for who, particularly how the other candidates voted. If someone that gets on the board knows one of their fellow board members voted against them it could cause a division within the board that could only harm the chapter. I have no problem with a 3 other trusted people knowing how I vote (they should all make a statement somewhere agreeing to keep the votes confidential, it probably goes without saying, but it would be best to say it anyway).