Journalism is under tight deadlines. If the story is just to complex the time that the journalist needs to write the story isn't used "productively".

Data point: I knew a person who worked as a journalist for a newspaper. Each day they received from their boss a random topic to write about, and they had to write three or four articles within the day. There was no time to do any research, and there was no budget for travelling and seeing something firsthand.

That situation left only a few possible strategies: (1) Call a few relevant people by phone. Most of them will refuse to talk with you, because they have experience that in the past they told a journalist something and the journalist wrote something else using their name as a support. A few people will respond. Compile their answers into articles. (2) Know a few people willing to talk about this topic. Call them. (3) Use Google and steal information from other articles, especially the foreign ones. (4) Just invent the story, using any cliche you know. (5) Any combination of the above. For example write the story first, using the cliches you know, then call random people and try to get them agreeing with you, and then add their names to the article.

That explained a lot. Among other things, it explained why a person willing to talk with journalists about anything can get so much space in media. (Assuming they are compatible with common wisdom and don't speak anything controversial.) For a journalist, such person is the best contact they could ever have.