User blog comment:Rupert Giles/Layout Changes: Breakpoints and Typography/@comment-126761-20150519224135/@comment-126761-20150520122238

I would like to say: we do not have bad feelings towards those who designed articles against the largest of screens, without realising the effects on smaller screens.

It's a pretty difficult area - you do this for fun, not as a day job. Asking editors to also be a QA team for device size simply isn't feasible on a global scale, and we don't want to end up putting all sorts of roadblocks in the way of editing, simply to ensure varied devices can see it okay.