Put yourself in the shoes of a call-center worker (and if you want to be mean to the issue, make that call-center worker female). These jobs have dress codes. They're also aggressively monitored during the day and require attentiveness and a cordial demeanor. And obviously, a typical call-center worker cannot depend on the idea of taking off in the van for a month, driving to some other city, and having the same economic prospects when they arrive. Most people cannot afford to be playful with the idea of job security.
It's weird to find yourself thinking, "must be nice to be an iOS developer who can live in a van". Especially when you think of the people who do it because they're forced to do it.
I found the article to be a little glib about its subject. Glib is the word I would use, for romanticizing a scenario that many Americans actually experience as an intractable nightmare. I found myself first thinking about how nice it would be to pull up to the oceanfront, lay down in my "living room" van, and doze off reading a book while listening to the waves... then I thought of the scene in The Pursuit Of Happiness (not a great movie, but a great scene) where Will Smith has to put his kid to bed in a closet in a train station.