There is an inherent simplicity in HTML / CSS / JS that can be easily forgotten and difficult to replace. Each has its responsibility: Organization, Style, and Function

I agree in the simplicity of HTML and CSS if we're talking about simple websites. I've found that for more complex apps, and especially if you're using features of newer, half-specified standards (with style prefixes etc.) things can get a bit out of hand. One thing I want to point out is that you can separate your Dub code by style and function if you want to, although I can understand if you do not want that option.

Thanks for the feedback.