To be able to show exact content doesn’t mean that is relevant, I try to see it on my 13" HD laptop screen, I was not able to read it, I try to go over my mobile, everything was dot size. This is why responsive design evolved. And responsive design is much more then switching colum numbers according to screen sieze. This is why now we have concept which is called UX (user experience) If this designs were perfect they would be readable on todays devices. To go safe in order to accommodate minority is censoring yourself and preventing mass majority to get better UX .