Yeah, it's impossible for society to keep up with how quickly technology moves. The idea that we can replace most of the workers, like, right now, without breaking a sweat is awesome.
But, like the article says, it would completely destabilize our entire country, and the entire world. Our focus on consumerism and capitalism has brought our society to the point where we wouldn't know what the heck to do if suddenly people didn't need to work.
Our whole culture is based on doing work, making money, spending it... If suddenly you told people, you don't need to work, you can just, well, kinda live how you want. People would be so lost, and it would piss economists off to no end, and all the rich people.
There's going to need to be a fundamental shift in how we think about society in general before technology can really be used to it's fullest...