the article and most comments here are more about EH's VISION of empowering regular people for cheap and on-demand blood tests. but the major problems the regulatory bodies, medical practioners and diagnostics experts have are mostly about theranos' underlining TECHNOLOGY, its basic SCIENCES and daily lab PRACTICES. to this date none of these three has been established at theranos (non-peer-reviewed, non-core patents, criticized by cms & fda w/ banning threats). in short, it just does not work (yet?)
it's like someone always talk about building beautiful resorts or gigatic mining operations on Mars, but fails to develop rocket propulsion systems or space travelling vehicles. if there would be other someone to bring us to Mars, it must be elon musk.