With the internet and modern platforms, we democratized music so that you can make music in your bedroom and publish it without collaborating with a record label, produces, etc. So you'd have to put some of that cat back into the bag, but for what?

I guess there could exist a Spotify that is limited to music performed live for people who like that. Or simpler: a checkbox you can click to filter it to music known to have been performed live.

But that doesn't sound like something I'd want imposed on all music on a platform. Scrolling through my SoundCloud favorites right now, less than half of them perform live at all, and a lot of it is remixes that are never performed live. And most of them are pseudonymous. I'd lose more than half of my music if the platform required music to have been performed live. A lot of music isn't even performable live.