One possible anaysis might go:
With the net and digital, production and distribution costs of publishing music are almost nil. So millions (and millions) of recordings of new music are now published annually as against certainly no more than 10,000 a year 50 years ago.
Not all music is of high quality or worth publishing at all. Most of it would not be published if publication cost what it used to. We can't all be great composers and performers.
The fallacious conclusion is that means more music to choose from. But the correct analysis is that you are more than 100 times less likely to find you like a piece of music you try. Therefore it can be said that trying new music is an unrewarding experience, at least in terms of time spent.