The more I think about it, it makes sense, considering they weren't enthused about touching this issue. But if it gives local businesses(both smoking ones, and non-smoking businesses that still favor freedom of choice) a great chance to successfully organize and fight this proposal before it's too late, more power to Webb City's council(and a la Devil Lake, ND's recent decision to refer a ban proposal to the ballot, instead of approving it).
More people need to organize against the Joplin-area group that's leading all these local smoking ban coalitions in each Joplin-area community, called Clean Air Project(it's an umbrella group that leads all the other local ones, like Smoke-Free Webb City). I'm slightly surprised Carthage wasn't the first community to refer it to the ballot, since that was the first community around there where their council had a hearing on this issue....
http://www.joplinglobe.com/local/x797276092/Webb-City-smoking-ban-heads-to-voters