The author's advice to do as little as possible will ensure a self-fulfilling prophecy.
In every company I've worked for, everyone knew who the "little as possible" workers were. They were not respected by their coworkers. When people left to do startups, those people were not invited. When layoffs came to town, those people were the first to go.
If you're confident in your abilities, use the layoff as the kick in the butt needed to found your own startup. Invite the high performers at the previous workplace. (I've known people who did this, and would relate to me much later how the layoff was the best thing that happened to their career.)