Thx for the article, interesting issue. I found your anti-locked in arguments more convincing than the pros. Modularity anf customization possibilities should focus on the user perspetive, not the brand. And sometimes theme provides way to much features, I often feel that it would have been simpler to just edit few CSS lined than finding my way in customize menu and sub menus. We may find advantage in the new paradigm but it doesnt seems than better than the old. Just different, with some advantages, and some cons.