Well, I am trying to fact check this article with more knowledgeable people than myself from a perspective of "so, can you actually make meaningful money making indie games" and the answers I am getting suggest yes, you can.

I am looking at this information as someone who wants to actually make a living doing things online. I don't need to become a millionaire. I just want a middle class income. I used to make $100/day at my corporate job (not $100/hour like a lot of programmers) and I started at above minimum wage. Plus, having that corporate job was incredibly expensive for me. So, I need less than $100/day to compete with my old corporate job.

I am actually looking for hard numbers of "can you reasonably support yourself doing things like this?" Maybe not with making games being the only thing, but as part of the picture.

This article is a little bit like saying "Actors are not capable of supporting themselves at all unless they are big Hollywood stars." Maybe that is true of acting, I don't know, but it isn't actually true of indie games. It can be done, though it no doubt is a tougher market than the one he entered however many years ago.