It's a similar problem space as architecture photography. On one hand, the photograph requires a technical skill, can involve some creativity and the photograph definitely wouldn't exist without the photograph. On the other hand, the art inside the photograph is primarily by the architect. A picture of a beautiful building is only beautiful because the photographer correctly captured the existing art that is the building.

I love architecture and photography, and this has been a thought that comes up a lot.

Ultimately streamers are performers, and it's their performance of the game that's being streamed. That includes their commentary and their performance in the game, both are inarguably unique. So you could say that is what the revenue is paying for.