Journalists aren't all Woodward and Bernstein. In fact, most of them aren't. They are, in the main, reporters. They report what they've been told, pausing only to package it up and make it more digestible to the reader. To hold the media in general to some higher 'you must be a domain expert to write about this subject' standard is to have a starry-eyed view of the world.

<bracing myself for the downvotes>