Tech companies are some of the largest and most influential companies in the world, and people are just now starting to understand what it means to have their lives influenced by wide-reaching algorithms. Sounds like a great topic for journalism to me.
Regardless of the motivation, NYT's recent algorithm-centric investigations (like the YouTube one a month or two back) are really interested and well-researched.
Someone did an article on how it’s a strategy to save their ad money. Really.