Your point kind of proves the point of the GP: there is almost no middle ground. The differences between rates of success are orders of magnitude. Order N doesn't break even, N+1 almost makes you a millionaire and could effectively set you for life.

Some of the examples you give also had quite a history of a backing in some form, which is a totally different animal compared to a "I wanna make a game!" indie developer today with zero network and zero funding.

All of those games you've mentioned are at least 5 years old now, many coming up to a decade old if you count their early access.

There was a golden age of indie gaming 5-10 years ago, but it does feel like that has passed somewhat.

Great list. I would add Hades and Slay the Spire.