This article has some elements of truth, but skips over some important stuff. In particular, the odds of making a living writing books when on salary, writing the books for a big company or celebrities etc, are vastly higher than just writing your own books. You don't have to beat insane odds if someone hires you for 70k/year to write books...you simply make that 70k/year. It's the same as e.g. people working in the video game industry. The odds of earning a middle class income as an Indie Game developer are super bad, but there are many thousands of people working salaried jobs in the mainstream AAA game industry who are definitely 'making a living'.

Also, this is nothing new. There is a reason 'starving artist' is a common term. For centuries, a lot of the most well known people in all creative fields were people who already had money when they started e.g. nobility, and some of those people were able to become famous, largely because they didn't have financial pressures that the vast majority of people had.

People do talk about this. At least, they do in the game industry. It's well known that when an independent studio gets bought (usually by a publisher they have been working for), this often results in the studio closing down a number of years later unless they crank out hit-after-hit. Of course, sometimes that doesn't happen and the studio gets more stability and more financial support, now that they are part of a larger company.

In regards to the people who sell their studio (founders), it's important to keep in mind that for most of these people, selling their studio while the studio is fairly popular results in life-changing wealth. Maybe selling the studio and becoming rich by doing so was not their original goal, but it should be no surprise that studio founders can be very tempted to sell the studio (at the right price). Owning an independent studio can be a gigantic amount of stress, and a huge financial reward that also allows the founder to simply get rid of all the headaches and stress is nothing to sneeze at.

Everyone who works at an independent studio knows the risks involved (to their own job eventually, if the studio is sold), and they often have mixed thoughts on what the founders are doing, but they don't all demonize the studio owners, since they would be tempted by the same potential rewards if they owned the studio.

Often the form factor is like a tiny pickup truck, so they are very versatile in terms of hauling stuff. The small size makes them very easy to park and maneuver through dense chaotic traffic. So from cost to functionality, they are in a pretty sweet spot. They aren't super safe in high speed traffic accidents, but in crowded cities, vehicles are not going super fast anyway, so the drawbacks are less important than their positive attributes.