The gig economy is way worse than the author describes. Gig workers can't advance with the companies they work for. Gig workers can't build a network with their coworkers because they don't have coworkers...and there's a good chance that they are competing for work with other people working for the same company. There are dead end day jobs, and then there is gig work.
Gig workers are casual labor. Like Dickens with less coal dust.
The gig economy is people working alone.