Comparing Theranos to SpaceX is pure lunacy. The accomplishments of SpaceX over the last 15 years have been impressive (to say the least), and clearly indicate the existence of a world-class scientific team behind the "hype."
In my experience, people who are not responsible for bringing ideas to fruition place way too much emphasis on the value of an "idea." Sure, a $2.90 blood test that can detect 300 medical conditions from a "pinprick's-worth of blood" is a great idea... for a science fiction story, as it turns out.
In reality, when not in the hands of a Steve Jobs, or Elon Musk, or Bill Gates, or XXXX [fill in your favorite visionary who actually shipped products], ideas aren't worth much at all; oftentimes $0.
I love a Cinderella story as much as the next guy. I was intrigued when I heard about this secretive medical electronics company in Silicon Valley. But the shenanigans they pulled to keep the "dream alive" were not the result of "industry challenges," they were the result of an idea with no basis in reality, given the state of current technology. If Theranos was around today, the only thing that would have been accomplished is more investors would have lost their money, and more sick people would have been put at risk. It wasn't "fake it til you make it," [which I don't believe in, anyway], it was fake it til you get caught.