It's comical. Google needs some PMs/POs/management who can reign in all the obvious internal politics. Google could own the streaming market if they could just build a coherent product, instead we get what you listed out.
Google needs less of so called product-"leadership" (like PMs and management) who are usually drivers of the aforementioned politics. The engineers need to have control to actually let engineering and metrics drive these decisions.
Well they definitely distribute and market... and the creator would be the artist (most of the time). So you’re just talking about producers / labels I guess? Definitely not what I would assume when you say industry...
That is the music industry. The rights holders and creators (IP owners). The distro channels are part of it, but wouldn't necessarily change (you want to distribute everywhere you can). If google bought all the music IP in the world, the distro channels are unchanged (unless Google decided to limit distribution!).