I didn't vote, but my reasoning would be that a day won't help. Allowing late submissions with explanation (as cperciva mentioned) or have the deadline tied to something (michaelhoffman) would probably be a better idea.
If you think that those are good ideas, I think you should (a) vote for extension, and (b) upvote those suggestions so that The Powers That Be see them. If they see those suggestions, but also see significant vote opposition to extending deadlines, they probably won't implement them.
