I think this is where the author contradicts his own argument. Do you know how many small businesses can be created on an open platform such as Firefox OS? It let's individuals and small development teams compete directly against Apple, Google, Facebook, Microsoft, etc. It truly levels the playing field, in my view. Or at least, that's what I hope Firefox OS will be capable of.
As a developer and designer, I (for one) can't wait to try out Firefox OS. If it works well, I'll start using it more. And by all indications I've seen, it will probably work pretty well :)