This is exactly why I stopped developing for native. If you want to fix a bug or tweak/add one little feature its a huge ordeal. Plus the 30% tax on non-recurring revenue. I'm glad he's doing mac apps. Less competition in the web space.
Im just saying your giving up a major marketing outlet if you arnt on the MAS. Of course you can go it alone, but since it is a MAC app, that would be foolish.