Lots of prestigious journalism fails at this, or has different goals. Most magazine articles don't start with a concise thesis statement, instead they try to hook the reader with something like "As I made my way up the stairs in the convention center, a stocky man with pale blonde hair stopped to ask me for directions to the men's room." and keeps going with this kind of enticing pseudo-fictional storytelling.
> Lots of prestigious journalism fails at this, or has different goals.
The answer is exactly that "or" of yours. Informing the reader in an efficient and useful way is a very distant, low-priority goal, and we're all aware of that and yet still somehow pretend journalism is about informing people. It's not anymore.