The article doesn't refer to capitalism. What in the article are you identifying as references to capitalism?
Though true, the articles doesn't go into 'capitalism = bad'.
Since shareholders and management in large corporations control much of what software developers do all day, every day, if one considers this a problem and wants a solution, what can you think about except unions? I can think of one thing, guilds. Like the lawyers and doctors and accountants we could form guilds, only take in people we know are decent and honest and we kick them out if they turn bad or don't live up to our professional standards. And then we could use that as a base for collective bargaining, or if necessary, extortion.
If you don't have anything else, then I think union is likely the more practical suggestion. Many know what a union is, there's recent history of success, striking is well understood.
The tech industry will never be a genuinely free market as long as big tech companies are allowed to be as big as they are today.
What we have today is a centrally-planned economy by MBA sociopaths, operated as a looting ground for the rich.
It will never function on normal competitive, supply-and-demand market principles.
Because, even though a healthier market is the only thing that has a hope of a return to the fast-growing tech industry of prior decades, it would also require big tech companies to accept a smaller slice of the overall pie and allow new competitors to grow.
Why do that when you can strangle the market and keep the entire corpse for yourself?