I think this article would have been better worded "Flat design is great for lazy designers like me." This isn't exactly limited Flat UI, anytime you're grabbi

I think this article would have been better worded "Flat design is great for lazy designers like me." This isn't exactly limited Flat UI, anytime you're grabbing set of premade content, be it Designmodo's flatui, Bootstrap, a word press theme, a JQuery plugin, you're outsourcing levels of your design. You can leverage these in your favor. Sometimes this is the best choice and will enable you to focus on other aspects of the project or extend onto functionality without having to reinvent the wheel and other times you're a lazy designer. Flat UI is just a rejection over-design, part of a cycle of design that loops. We'll edge back towards more over-design until we hit the reset button again.