Yes, true investigative reporting is rare (and expensive), but good work is still being done.

For the media at large, given the volume of stuff you can read, much of it is plain "story-telling" or "narratives", and I do think the media is more likely to go with things that fit the narrative of the day than look at things with a critical eye.

With Theranos, the media absolutely wanted to highlight a "female Steve Jobs", and Holmes used that to her advantage. Similarly, with SBF, given all the smarmy characters in crypto, he fit the narrative of "the good guy", "the next JP Morgan" coming to save the financial system for good.