Because they are too busy reporting "not fake news" such as: "Alec Baldwin says he might give up his Trump impression on 'SNL'". If you get your news from CNN, you're brainwashed.
Because the story broke this morning and it takes time for someone to read the dump, write a story, get comments from technical experts, etc? There's not really a big dramatic revelation here – “Intelligence agency spies on people - film at 11!” – so they probably aren't pulling people off of bigger stories to cover it.
