I liked the article. It was an authentic (I assume) personal story. It wasn't a "strawman," or a "this is the way things should be" thing. It was a fairly plain-spoken personal chronicle.
I enjoyed it, and wish the author well.
For myself, I worked at a company that had a mission I was passionate about. I'm also a xenophile, and it was a Japanese company. I was fascinated by the Japanese commitment to Quality (at that company). I like working in teams; the more varied and exotic, the better.
I joined, planning on an 18-month stay (like my previous two gigs), but left, 27 years later.
I made some effort to find new work, after leaving that company, but became quite disillusioned with the process. I had acquired a "nest egg" that would allow me to retire, early. After a few insulting and rather demoralizing interactions with a few corporations, I decided that it was time to hang up my chinos, and write the code I always wanted to write, the way I wanted to write it; with no one taking a dump on it.
I have never been happier. I am probably working harder than I ever have, in my life, and having a blast.