This is the language of people just looking at high budget games. Much like people insisting there are no good films when they only look at superhero movies. Quality indie titles come out all the time.
> Quality indie titles come out all the time.
Depends on how you define high quality, indie games with quality similar to Hollow Knight do not come out all the time.
It just is much harder to have that level of polish and amount of content without a bigger well oiled team, so almost no indie games reaches that level.