Agreed. So to the extend the current streaming system is unsustainable, wouldn't you agree that instead of passing those wasteful and inefficient costs to the consumers in the form of price-hikes it would be better to improve the system such that costs can remain the same or even lower.The issue here is music copyright. Every time technology allows for a new paradigm of consuming music, a new law invariably gets passed to "fix" music copyright, which just makes the entire process of tracking payments even more convoluted and confusing. It's wasteful, it's inefficient, and there's really nothing these companies can do about it, because they are not the ones who wrote the rules in the first place.
I'll note this too: If companies that don't have any other non-streaming product go under (Spotify, Pandora, Tidal), and the remaining companies jack their prices up (Apple, Amazon, Google), then I think a lot of consumers will be quite upset at the music industry as a whole. It would also reek of price-fixing all over again. Maybe that needs to happen to light a fire and solve the problem you identified above, but either way it would really stink.