The issue is discoverability.

Sure if you made a name for yourself, you can bank on that. People will buy Slay the Spire 2 instead is cheap copycats.

However I you are a new indie dev and made a decent game, how can people find you? They can't under the sea of slop. They could scroll and scroll and never find you.

I heart from many game reviewers that they have an harder and harder time finding good games to review. Not because people don't make good games anymore, in fact more good games than ever are made but finding them is harder than ever. Indie devs don't have a giant marketing department.

If steam keeps refusing to curate game the gaming market is going to crash hard.