I think it's fine, Spark said they were planning on making it the default a couple days ago so I was planning on making a retheme to follow that. I don't get the freak out, the layout seems to be overall the same as well as the class and ids if you ignore the extra ones that were added, but I do agree that it's kind of annoying to have to go back through your code and fix image urls and stuff, even more so if you usually have over a hundred lines of that code like me