When you have a "Free vs. Pro" model, you usually structure it so that the Free version is subsidized by the money from the Pro version. So I don't think it's outrageous to be confused by someone having such a model, and yet still needing a Kickstarter campaign.
That's not to say there is something wrong with it. It just seems confusing at face value.
I'm not really sure why the idea is such a foreign concept to the point where you need to insinuate that I think that Free software "falls from the sky" or some such nonsense.
