The real "danger" in the digitization/automation  movement, included in what Mr. Wadhwa writes, is artificial intelligence. It seems we are in reckless pursuit of all three.
There's no telling how the  confluence of computer sciences, genomics, prosthetics, robotics, alternative energy sources, high density energy packets, broadband communications, and AI will shake out. But I think there will be at least two major consequences. The first will be humanity's loss of purpose. After all, if the computers and robots are doing everything for us, driving cars, shopping, cooking, learning, and having fun, then for what reason(s) does mankind continue to exist?
The second will will be a new dominant species. Again, there's no telling in how it will manifest. However, it won't be long before it concludes that humans are not only inconvenient, but inimical to its purposes.
 The overall effect will be that mankind will have stepped aside to let the AI entity rule. It's evolution on steroids.