To be fair, the reporter did leave a margin of error. He may not have understood the uncertainty in the mileage estimates, but he wasn't planning things to the mile. It doesn't seem unreasonable for him to have believed that a range greater than the distance planned by a factor of 2 was safe before parking the car overnight.
He neglected to fully charge when he had the chance (chances actually) or to plug it in overnight. He had a story to write and made sure it ended up like he wanted.
It's also not interesting to publish an uneventful review consisting of a week of mid-range commuting and running errands. This is the exact use Tesla is selling the car for, but big name reviewers (Top Gear, NYT) insist on putting it into unrealistic situations until it 'fails.'
