So are you saying that novice developers (i dont think the author would even call himself that) should not use bootstrap and instead waste extra time learning how to structure their pages? Its not hard to insert a 'pre-written' bootstrap css stylesheet and completely change how a bootstrap page looks while still taking advantage of the grid system etc.
Can't agree more with this advice. Everybody's talking about MOOCs, CodeAcademy etc and while I used those platforms for sure, looking back it was the experience that really helped me. The hours and hours of not knowing why your code is not compiling and learning the hard way is invaluable - but schools and classes can't emulate that well enough.
First day of freshmen programming class our professor made everybody go on this site when students came in late... One kid literally walked in, turned around, walked out and dropped the class.