I agree that it came off as a bait and switch. Having looked a bit deeper, the plugin is open source and you can download, compile and distribute it for free. T

I agree that it came off as a bait and switch. Having looked a bit deeper, the plugin is open source and you can download, compile and distribute it for free. They charge for the precompiled binaries that you can get in the Unity Store (now videolabs store). If we were already aware of all this then this wouldn't have come off in the same way. The problem is that due to the way it was written I think most people expected the plugin to be free on the store. Personally I think it just could have noted that the general interest section of the article was finished when they segued into the store announcement. Anyway, assuming everything is as they say then it seems pretty clear that Unity have some other reason for banning it, most likely commercial.