I understand this perspective, believe me I do (I'm the post author). I'm also a back-end developer with very little design know-how. However, my point is just to bring awareness to the idea that design should be part of the product creation process. There are just way too many Bootstrap sites appearing. In fact, many solutions to problems that startups are working on can be solved with better design, but I think Bootstrap encourages us to come up with solutions that fit in a particular design model.