This is for certification, not demonstration missions. That capsule is scheduled for the unmanned DM-1 flight, after which will be the manned DM-2 flight, at which point SpaceX will submit its data for final certification in advance of operations flights.
As an aside, the author (Eric Berger) is in no way biased against SpaceX - he's one of the most overtly pro-SpaceX journalists around.
As an aside, the author (Eric Berger) is in no way biased against SpaceX - he's one of the most overtly pro-SpaceX journalists around.