So, if what you say is true, then Music Choice is the number one music app.. however, it is not.
It's a curated playlist that's mostly available through cable TV. That's mostly how people know it. They aren't as aggressive in marketing their service as Spotify or Pandora. They'd probably be more successful if their business model wasn't stuck in the 80s. But you could say the same thing about OTA radio.
Tell me a popular music app that is built around live & local DJs. There isn't one.