True, but with Spotify, now Apple and in the future perhaps other major players, what if all members of the oligopoly deny someone a service?
>even host it themselves
Can be seen as a silencing strategy - making something extremely inconvenient.
It's funny to call an industry that didn't even exist 20 years ago an oligopoly. The industry leader of 20 years from now may not even exist yet.
It's not Apple's job to keep things convenient for content publishers. Let alone those only indexed by their search engine. If you're squelched by mere "inconvenience", then perhaps your convictions to share your message aren't strong enough and your message isn't worthy of attention after all.