I think, although I can't be sure, what might escape the author is that all news provided by corporate media has become carefully managed to insure citizen's compliance if not support for policies of the capitalist Empire. This is done using various techniques such as ordinary deceptions, big lies, censorship, planting testimonials from carefully selected people who support their points of view, etc.
I believe, as this writer implies, that the problem of the credibility of corporate media has grown worse especially since 9/11. Where decades ago their coverage was filled with 50% lies, nowadays it is around 90%. However everyday I see evidence that people, even intelligent people, believe the garbage that's fed them.
Gone are the times when the BBC’s John Simpson liberated Kabul single-handed. Nowadays, we are mostly fed the opinions of pre-programmed stenographers comfortably seated behind desks in London,Washington, Paris or Berlin. That might give a clue as to why the Aleppo, Oborne reports on, doesn’t seem to fit the prevailing narrative of a city recently occupied by ‘moderate’ rebels that has dominated our daily news over the last few weeks.