Because the whole "Free Cities" thing is part of the old Libertarian wet dream of establishing instant Utopias on whatever scrap of "unclaimed" land they salvage from somewhere (some rock or coral reef somewhere... or in this case, lands belonging to an indigenous group seen as too weak to defend itself). Where the world will finally see how efficient and truly egalitarian we can all live once the bane of Coercion has been abolished once and for all. And the sun will never stop shining, etc. You know, John Galt and his valley in Colorado, etc.

In any case, the current generation's de-facto "John Galt" (Peter Thiel) is one of the key backers of the Honduran project, so (despite the abuse of posting guidelinbes) that makes it very much a Libertarian topic.

There has been repeated discussion of this topic: http://www.economist.com/node/21541391

I thought context would be helpful to readers who have seen those articles before.