I think Stable Diffusion, being FOSS & usable on a decent range of consumer hardware, is a pretty clear counterexample to the article's claim - it doesn't matter if you're a capitalist or not, you can get great value from the technology. Funnily, the article totally avoids mentioning SD.
A1111 and the extensions system they've built is really amazing for putting FOSS into nontechnical consumers' hands.
I personally found that stable diffusion has been just as good at producing imagery. And i have seen plenty of fine tuning done for specific purposes (see https://civitai.com/models/5585/deliberate-for-invoke for example).
And the fact that SD is available locally, as opposed to midjourney, makes it more of a hotbed for new innovations.
I’m asking, I have no idea. I was under the impression that MJ was a easier to use toy. I didn’t know they were close let alone Mj superior.