Is it though? 100k isn't really a lot after Steam's cut and taxes (unless you live in a cheap CoL country). Even with a 1-person team it probably breaks down to about 50k a year after Steam/taxes and that's only if you make a top 5 percent game on your own.
Elsewhere in the report it mentions that games have become increasingly winner take all, where in 2016 top games only made up 37% of all revenue, now they take up 61%.
Lethal Company has literally one single person as the dev and Battlebit Remastered has 3. I don’t know why it’d be hard for game number 700 to also have a solo developer, or maybe two.
The 700th best game in a single year damn well better be a solo dev. Even saying there are half that released in a year that aren't shovelware is generous.
If you're a studio that can't do better than that you deserve to shut down.