Yeah and, for sure, it won't pass... considering how conservative we are, plus the legal side of the proposal is not so clear in where the money will come from.
It's not some kind of endorsement of it as a good or feasible idea, unfortunately. As you point out, most pro basic-income people I've talked with here tend to hand-wave the "how do we pay for it" question as "implementation detail" or some idealistic rhetoric ("tax the rich more!") which is not encouraging me to vote in favor.
I would be happy to give my vote to a proposal that included a budget proposition, or a rational analysis of feasibility. The current one doesn't (http://initiative-revenudebase.ch/initiative/)
Though this might be part of the whole "Everything is better in Switzerland" psyche prevalent in France (streets are paved in sheets of gold, etc).