Arguably, the big deals and optimism indicate that there is a lot of pent up demand for successful things, and people are willing to take some risk to get solutions. It’s not all doom and gloom, solutions just have to work.
Conversely, I read Theranos's progress as evidence of cynical bets that the government/military could likely be directed into pumping billions of USD into the company regardless of its merit.
You could certainly draw that conclusion from its original board. I did as well. Still, I think the point stands that people want healthcare to work, and will pay for it. It just so happens that it takes a lot of effort to improve the system since what we have is pretty good. (Not to say it doesn’t have problems)