I wish the TV industry can accept way of Spotify is the way to go. Instead, now we have dozens of streaming platforms with exclusive contents.

They can't, because they have a different business model. For TV content producers, consumers paying for content (with either dollars or eyeballs) is their main source of income. But for musicians, most of their money comes from playing live shows. So Spotify can be much more relaxed about revenue than HBO.

Or t-shirts!

https://cdm.link/2019/12/tshirts-sell-spotify-doesnt/

It also costs a good deal less for a band to put out an album than it does to make a season of game of thrones.

And an album provides far more recurring revenue than a movie does. I’ve listened to my favorite albums hundreds of times. I’ve watched my favorite television shows twice, three times at most.

What's the "way of Spotify" in your post? One single company toll-gating all content? That doesn't sound like the ideal to me.

Multiple companies having libraries of essentially all content. I can choose between Spotify, Apple Music, whatever Google rebrands their product to every month, etc.